Aqualab: LED Driver List - LED Drivers and Regulator Boards (database driven)

LED Driver List – all LED drivers

Video Foundry/Aqualab does not sell any of these drivers. Links are provided to resellers. The short URL for this list is www.videofoundry.co.nz/driverlist. A spam-bot protected link for my contact email address is at the bottom of the page.

448 drivers found. Listed by driver name.

Driver Name

SKU or catalogue #

Retailer

Price (US$)
(shipping incl unless
otherwise stated)

Driver Type

Driver Purpose

V_in min-max
(DC except where noted)

Number of LEDs in series
min-max

Battery Suitability

Efficiency
min-max

Output Current
(off the shelf)

Max current (with just a resistor modification)

Number of Modes

Size
(diameter except where noted)

Notes

Recent updates

Show only SKUs containing

from	$
to	$

Stock level

Shipping incl

from
to

Driver can power

LEDs incl with driver

mod. current

from
to

const. current

(2-3)x3 W

64666

Other

$4.76

Mains buck driver

85-265 V AC

115 V or 230 V AC mains power

650 mA

58 mm x 26 mm x 22 mm

Output voltage 10-12 V (which contradicts the claimed working range of 2-3 LEDs).

Last updated 21 Oct 2011.

(4-7)x1W mains driver

47060

DealExtreme

$3.40

Mains buck driver

85-265 V AC

4-7

115 V or 230 V AC mains power

330 mA

Output 14-25 V. Said to be compatible with PAR20 bulb.

Last updated 10 Jun 2011.

(4-7)x1W mains driver, grey case

65265

DealExtreme

$21.40

Mains buck driver

85-265 V AC

4-7

7 LEDs included

115 V or 230 V AC mains power

300 mA

Output voltage 12-25 V. Waterproof, IP66 rating.

7 cool white LEDs included (in an aluminium downlight).

Last updated 24 Dec 2011.

1 W - 3 W mains driver

11077

DealExtreme

$9.03
(sold out and/or discontinued)

Mains buck driver

100-240 V AC

1-3

115 V or 230 V AC mains power

350 mA
constant current

41 mm x 41 mm x 20 mm

Enclosed in white box, presumed transformer with buck regulator. Constant current out 350 mA @ 3-12 V.

Last updated 4 Dec 2011.

1*1W (barcode)

111221

DealExtreme

$6.10

Mains buck driver

100-240 V AC

1 LED included

115 V or 230 V AC mains power

330 mA

Output voltage approximately 3.5 V.

1 cool white LED included (in an aluminium cabinet light).

Last updated 24 Dec 2011.

1*1W LED Driver Adapter

111219

DealExtreme

$7.20

Mains buck driver

85-265 V AC

1 LED included

115 V or 230 V AC mains power

330 mA

Output voltage 3.0-3.8 V. Output current listed here is a guess.

1 cool white LED included (in an aluminium downlight).

Last updated 25 Dec 2011.

1-10x 1 W LED driver

491

Best Hong Kong

$14.95 + shipping

Mains buck driver

90-260 V AC

1-10

115 V or 230 V AC mains power

330 mA
constant current

96 mm x 28 mm x 17 mm

Output voltage 2-39 V, recommended less than 35 V. Short circuit protected.

Last updated 10 Jun 2011.

1-3x 3 Watt Dimmable Constant Current LED Driver

792

Best Hong Kong

$9.95 + shipping

Buck driver

10-24 V DC; also works with AC

1-3

≥3x Li-ion, 12 V car battery

800 mA
constant current

35 mm x 31 mm diameter

Dimmable with trim adjustment 30-800 mA.

Last updated 10 Jun 2011.

1-3x1 W

102865

DealExtreme

$8.80

Mains buck driver

85-265 V AC

1-3

1 LED included

115 V or 230 V AC mains power

320 mA

Output current is a guess. Output voltage 3-10 V.

1 warm white LED included (in an aluminium downlight). Also available with 3 LEDs.

Last updated 23 Oct 2011.

1-6x 1 W driver

907

Best Hong Kong

$5.95 + shipping

Buck driver

4-24 V DC; also works with AC
(max. 16 V AC)

1-6

350 mA

25 mm x 19 mm x 18 mm

Minimum input voltage is a guess.

Last updated 12 Jun 2011.

1-6x 3/5 W LED driver

557

Best Hong Kong

$19.95 + shipping

Mains buck driver

90-260 V AC

1-6

660 mA
constant current

96 mm x 28 mm x 17 mm

Output voltage 2-24 V. Short circuit protected.

Last updated 10 Jun 2011.

1.0 A, 30W mains driver

55364

DealExtreme

$12.70

Mains buck driver

85-265 V AC

9-12

115 V or 230 V AC mains power

1000 mA

95 mm x 41 mm x 29 mm

Output voltage 30-36 V.

Last updated 10 Jun 2011.

1.2 A buck driver

S008848

KaiDomain

$2.83
(down from $3.21)
(sold out and/or discontinued)

Buck driver

3-9 V

1200 mA

17 mm

Unknown input voltage range; even the web page title has two ranges (6-9 V and 3.0-9.5 V). Claimed 1.2 A maximum output current implies it's not a constant current driver. It's also not good considering a 1 A Schottky diode is used. Buyer beware.

Formerly product ID 9912.

Last updated 21 Nov 2011.

1.3 A buck driver

S008368

KaiDomain

$8.98
(sold out and/or discontinued)

Buck driver

3-26 V

1300 mA

20 mm

Formerly product ID 9265.

Last updated 21 Nov 2011.

1.3 A, 20 W mains driver

42741

DealExtreme

$7.50

Mains buck driver

85-265 V AC

5-6

115 V or 230 V AC mains power

87%

1300 mA

70 mm x 35 mm x 20 mm

1.3 A output at 18 V is actually 23.4 W, so it's likely the output isn't tightly regulated. This may be confirmed by one report of 1070 mA output. Efficiency figure is from a review.

Last updated 7 Jul 2011.

1.3 A, 40 W mains driver

54009

DealExtreme

$17.90

Mains buck driver

85-265 V AC

9-12

115 V or 230 V AC mains power

1300 mA

95 mm x 41 mm x 30 mm

Output voltage 30-36 V.

Last updated 14 Aug 2011.

1.4 A, 28 W mains driver

44009

DealExtreme

$12.00

Mains buck driver

85-265 V AC

7-8

115 V or 230 V AC mains

1400 mA

65 mm round board

Output voltage 22-25 V. Review says output is 1.15 A.

Last updated 14 Aug 2011.

1.5 V, 300 mA Boost Driver

4451

DealExtreme

$8.51 for 5
(sold out and/or discontinued)

Boost driver

1.5-3 V

1-2x AA

40-80%

300 mA

15 mm

~300 mA output with one fresh AA, ~530 mA with two AA cells. Accurate testing has been difficult, presumably because of the high switching frequency of the board.

Last updated 10 Jun 2011.

1.6 A, 50 W mains driver

47304

DealExtreme

$16.20

Mains buck driver

85-265 V AC

10-12

115 V or 230 V AC mains power

1600 mA

87 mm x 55 mm x 35 mm

Output voltage 32-36 V.

Last updated 10 Jun 2011.

1.7 A, 60 W mains driver

47305

DealExtreme

$16.00

Mains buck driver

85-265 V AC

9-12

115 V or 230 V AC mains power

1700 mA
constant current

87 mm x 55 mm x 35 mm

Output voltage 30-36 V.

Last updated 10 Jun 2011.

10 W mains driver (0249A 5309H1)

42745

DealExtreme

$5.61

Mains buck driver

85-265 V AC

3-4

115 V or 230 V AC mains power

900 mA

55 mm x 30 mm x 16 mm

Output 10-12 V. Current output reported to be unstable when used with some LED configurations, and stable at 1 A in other configurations.

Last updated 10 Jun 2011.

10-18*1W LED Driver Adapter

113063

DealExtreme

$27.00

Mains buck driver

85-260 V AC

10-18

12 LEDs included

115 V or 230 V AC mains power

330 mA

Output voltage 27-63 V. Output current listed here is a guess.

12 warm white LEDs included (in an aluminium downlight).

12 Jan 2012.

100 W, 2.5-2.8 A mains driver

LD100W-001

Other

$22.98 + shipping

Mains buck driver

85-265 V AC

115 V or 230 V AC mains

2800 mA

141 mm x 54 mm x 30 mm

Output current 2.5-2.8 A. Output voltage 30-36 V. Size info is assumed from a similar driver with identical photo.

Last updated 10 Jun 2011.

100 W, 3.2 A mains driver

LED-D100W

Other

$22.98 + shipping

Mains buck driver

85-265 V AC

115 V or 230 V AC mains

3200 mA

141 mm x 54 mm x 30 mm

Output voltage 30-36 V.

Last updated 10 Jun 2011.

100-240 V AC 700 mA LED Driver

Other

$11.00 + shipping
(sold out and/or discontinued)

Mains buck driver

100-240 V AC

1-2

115 V or 230 V AC mains power

700 mA
constant current

40 mm x 40 mm x 20 mm

This product has been replaced on the retailer's web site with an LED optic. Oh boy. The driver may still be available elsewhere on the site.

Maximum output power 6 W.

Last updated 10 Jun 2011.

100W mains driver

64665

Other

$32.07

Mains buck driver

110-240 V AC

10-12

115 V or 230 V AC mains power

3000 mA

Output voltage 32-36 V.

Last updated 10 Jun 2011.

10W mains driver

81781

DealExtreme

$4.10

Mains buck driver

GU10 and/or E27 driver

90-265 V AC

8-10

115 V or 230 V AC mains power

90%

315 mA

35 mm x 15 mm x 15 mm

Output voltage 25-30 V. Claimed minimum efficiency listed here. Assumed to be a GU10/E27 driver because of the description "Suitable for common spotlight, and ball lamp cup".

Last updated 6 Jul 2011.

10W mains driver (yellow case)

44879

Other

$5.87

Mains buck driver

85-265 V AC

2-4

115 V or 230 V AC mains power

900 mA
constant current

77 mm x 30 mm x 25 mm

SKU FLA0553. Output voltage 7-12 V.

Last updated 8 Aug 2011.

12W mains driver

81767

DealExtreme

$9.90

Mains buck driver

GU10 and/or E27 driver

90-265 V AC

9-12

115 V or 230 V AC mains power

90%

320 mA

53 mm x 35 mm x 15 mm

Updated specs: Output current is a guess. Output voltage 25-30 V. Driver has 9-12 written on it. but that doesn't correspond with the stated output voltage.

Previously: Output current 1100 mA. Output voltage 8-11 V (3 LEDs). Claimed output current 1.1-1.5 A, which is an unusually large range for a mains driver. Claimed minimum efficiency listed here.

Last updated 28 Nov 2011.

144W RGB Signal Amplifier for LED Strip Light

73695

DealExtreme

$13.10

User interface board

12-12 V

1-3

12 V DC

12 A

105 mm x 64 mm x 24 mm

Input PWM signal. Maximum power handling 144 W.

Last updated 24 Dec 2011.

144W RGB Signal Amplifier for LED Strip Light

73695

DealExtreme

$13.10

User interface board

12-12 V

1-3

12 V DC

12 A

105 mm x 64 mm x 24 mm

RGB PWM controller. Input PWM signal, each channel output 4 A PWM at 12 V. Maximum power handling 144 W.

Last updated 24 Dec 2011.

18W mains driver

82749

DealExtreme

$5.00

Mains buck driver

85-265 V AC

12-18

115 V or 230 V AC mains power

90%

315 mA

53 mm x 21 mm x 19 mm

Output voltage 63 V. Because of the originally contradictory specs (and the present lack of output voltage range) it's possible this is only 4-5 LEDs with at output voltage 12-18 V. Buyer beware.

Last updated 31 Aug 2011.

1A, 1 mode driver

S010093

KaiDomain

$10.42 for 5
(up from $8.42)

Buck driver

3-18 V

1000 mA

17 mm

Incomplete specifications given. Said to be a Cree XM-L driver but only has an output of 1 A.

Formerly product ID 11360.

Last updated 21 Nov 2011.

1W LED driver grey case

80470

DealExtreme

$6.20

Mains buck driver

85-245 V AC

1 LED included

115 V or 230 V AC mains power

300 mA

Output current is a guess.

1 warm white LED included (in an aluminium downlight).

Last updated 13 Oct 2011.

1x 1 W LED driver B350B12D1-1

443

Best Hong Kong

$5.95 + shipping

Buck driver

12-12 V

350 mA
constant current

23 mm x 19 mm x 14 mm

Last updated 10 Jun 2011.

1x 3 W LED driver B700B12D3-1

446

Best Hong Kong

$5.95 + shipping

Buck driver

12-12 V

700 mA
constant current

23 mm x 19 mm x 14 mm

Last updated 10 Jun 2011.

1x 3W

102743

DealExtreme

$10.90

Mains buck driver

85-265 V AC

1 LED included

115 V or 230 V AC mains power

670 mA

Output current is a guess.

1 warm white LED included (in an aluminium downlight).

Last updated 21 Oct 2011.

1x 5 W LED driver B700B12D5-1

448

Best Hong Kong

$5.95 + shipping
(sold out and/or discontinued)

Buck driver

12-12 V

700 mA
constant current

23 mm x 19 mm x 14 mm

Product removed from site; probably replaced by the 1-6x 1W driver.

Last updated 12 Jun 2011.

1x 5W mains driver

14034

DealExtreme

$7.48 (down from $7.99)

Mains buck driver

110-240 V AC

115 V or 230 V AC mains power

85%

1080 mA
constant current

30 mm x 15 mm x 15 mm

Transformer with buck regulator. Claimed 2 A constant current output @ 3.5-3.8 V (ie, 7-7.6 W), although one buyer claims it's only 1.2 A output (~4.2 W), and another says a mere 1.08 A, making it overpriced compared to the other single LED drivers. Either way it's well short of the claimed 2 A constant current output. Buyer beware!

Last updated 4 Dec 2011.

1x AA, 3 mode boost driver (LDCH)

the 176

Shining Beam

$5.45 + shipping

Boost driver

0.8-1.7 V

1x AA

900 mA

14 mm

SKU 1406. Three modes with memory; low 25 mA, medium 200 mA, high 900 mA (claimed).

Last updated 10 Jun 2011.

1x AA, 3 W Boost Driver, 20 mode, v2

7880

DealExtreme

$3.96

Boost driver

0.8-1.7 V

1x AA

800 mA

17 mm single layer, old version was 16 mm

Boost driver, 20 modes in three groups. Output voltage and current not constant, 1.0 V in gives ~300 mA out, 1.4 V in gives ~700 mA out. Run on two fresh NiMH it outputs 1.8 A and gets very hot - not advised. I believe this is identical in operation to the AAA driver except for physical size (and the new version of this board is black). "LDCH" on the back of the board is the manufacturer.

Tip: To disable modes see this post.

Last updated 10 Jun 2011.

1x AA, 500 mA Boost Driver, 5 mode (3 steady)

7302

DealExtreme

$3.50
(sold out and/or discontinued)

Boost driver

0.9-1.5 V

1x alkaline or NiMH

65-80%

500 mA

17 mm - two boards in double layer

~500 mA output, current not constant. Spec claims 5 modes; high 100%, mid 35%, low 10%, strobe, SOS. However one reviewer claims 16 modes, and with the steady modes in the opposite order.

Last updated 10 Jun 2011.

1x AAA, 3 W Boost Driver, 20 mode

7881

DealExtreme

$4.50
(sold out and/or discontinued)

Boost driver

0.8-1.7 V

1x AAA

800 mA

10 mm - two boards in double layer

Boost boards; output voltage and current not constant. Gets really hot when used with two AA cells. I believe this is identical in operation to the AA driver but is narrower and taller than that one.

Last updated 10 Jun 2011.

1x AMC7135
(NANJG 10)

PCB Components

$5.70 (approx)
€3.95 (actual) + shipping

Linear regulator

3.3-6.6 V
(for 0.6 V lower Vin see Tip 1 in the notes below)

3x NiMH,
4x alkaline,
1x Li-ion

50-97%

330 mA
constant current

17 mm

Linear regulator using one AMC7135 chip (thus the pictured driver is not this one). Note that the claimed input voltage doesn't allow for the polarity protection diode; the correct figures are listed in this table. See extra AMC7135 notes below.

Last updated 22 Dec 2011.

1x1W

48913

DealExtreme

$12.00

Mains buck driver

95-265 V AC

1 LED included

115 V or 230 V AC mains power

350 mA

Incomplete specs - output current listed is a guess.

1 white LED included (in a fancy acrylic downlight).

Last updated 10 Jun 2011.

1x1W (220V)

51599

DealExtreme

$10.50

Mains buck driver

220-240 V AC

1 LED included

230 V AC mains power

300 mA
constant current

Driver is marked 85-265 V AC input but description and label on product says 220 V. Output 2-6 V.

1 red LED included (in a fancy aluminium holder).

Last updated 10 Jun 2011.

1x1W blank

50764

DealExtreme

$11.00

Mains buck driver

85-265 V AC

1 LED included

115 V or 230 V AC mains power

300 mA

1 white LED included (in a fancy aluminium holder).

Last updated 10 Jun 2011.

1x1W blue

51388

DealExtreme

$10.00

Mains buck driver

85-265 V AC

1 LED included

115 V or 230 V AC mains power

330 mA

Incomplete specs - output current listed is a guess.

1 red LED included (in a fancy acrylic downlight).

Last updated 10 Jun 2011.

1x1W mains driver

64009

Other

$2.62

Mains buck driver

85-265 V AC

115 V or 230 V AC mains power

90%

320 mA

Output voltage 3-5 V.

Last updated 10 Jun 2011.

1x3W

49737

DealExtreme

$19.20

Mains buck driver

95-265 V AC

1 LED included

115 V or 230 V AC mains power

660 mA

Incomplete specs - output current listed is a guess.

1 amber LED included (in a fancy crystal shaped downlight).

Last updated 10 Jun 2011.

1x3W blank

50762

DealExtreme

$12.50

Mains buck driver

85-265 V AC

1 LED included

115 V or 230 V AC mains power

680 mA

1 white LED included (in a fancy aluminium holder).

Last updated 10 Jun 2011.

1x3W blue

42087

DealExtreme

$11.80

Mains buck driver

85-265 V AC

1 LED included

115 V or 230 V AC mains power

700 mA

Incomplete specs - output current listed is a guess.

1 white LED included (in an aluminium downlight).

Last updated 10 Jun 2011.

1xAA boost driver

S009810

KaiDomain

$11.37 for 5
(up from $11.15)

Boost driver

0.9-1.5 V

1x AA

400 mA

14 mm

Description claiming "output voltage: less than 1.5V" is just a laugh, as is the "Length: 7.50cm" dimension and the "5pcs a pair" quantity. Unknown minimum input voltage - values given here are just a guess. Buyer beware.

Formerly product ID 11063.

Last updated 21 Nov 2011.

1xAA, 3W driver

S003150

KaiDomain

$5.11
(sold out and/or discontinued)

Boost driver

0.9-3 V

1-2x AA NiMH

700 mA

20 mm claimed, possibly smaller

Apparently a voltage regulator, not a current regulator. Output voltage 2-7 V, must be >= input voltage. 17 mode in three group.

Formerly product ID 1672.

Last updated 21 Nov 2011.

1x AMC7135
(NANJG 10)

3160

DealExtreme

$16.68 for 20

Linear regulator

3.3-6.6 V
(for 0.6 V lower Vin see Tip 1 in the notes below)

3x NiMH,
4x alkaline,
1x Li-ion

50-97%

330 mA
constant current

17 mm

Linear regulator using AMC7135 chip. See extra AMC7135 notes below.

Last updated 17 Oct 2011.

2.0 A, 70 W mains driver

54004

DealExtreme

$25.00

Mains buck driver

85-265 V AC

9-12

115 V or 230 V AC mains power

88%

2000 mA

120 mm x 56 mm x 34 mm

Output voltage 30-36 V. Power factor >0.98.

Last updated 10 Jun 2011.

2.2W 93-Mode Controller for ZJ168 Drive LED w/ Remote Control

73675

DealExtreme

$20.80

User interface board

12-12 V

1-3

12 V DC

93 mm x 57 mm x 25 mm

Compatible with LED emitters with ZJ168 drive. Maximum power handling 2.2 W. RF remote control.

Last updated 24 Dec 2011.

2.5 A, 80 W mains driver

47307

DealExtreme

$22.90

Mains buck driver

85-265 V AC

10-12

115 V or 230 V AC mains power

2500 mA
constant current

120 mm x 55 mm x 35 mm

Output voltage 32-36 V.

Last updated 10 Jun 2011.

20W boost driver

66388

DealExtreme

$10.50
(sold out and/or discontinued)

Boost driver

12-12 V

4-6

1300 mA

78 mm x 38 mm x 21 mm

Output voltage 14-20 V. Includes driver heatsink.

Last updated 13 Oct 2011.

20W boost driver

102674

DealExtreme

$11.30

Boost driver

9-15 V

3x Li-ion,
12 V automotive

1300 mA

69 mm x 50 mm x 20 mm

Output voltage 16-18 V. Includes driver heatsink.

Last updated 3 Nov 2011.

25W mains driver

100567

DealExtreme

$11.70

Mains buck driver

85-265 V AC

115 V or 230 V AC mains power

1600 mA

94 mm x 40 mm x 26 mm

Output voltage 16-18 V. Previously claimed to be suitable for E27 and GU10 light bulbs but is considerably bigger than drivers normally used for that purpose. Proposed purpose is a 5s5p array (25 total) of 1 W LEDs. Driver comes with its own heatsink.

Last updated 28 Nov 2011.

2x 1 W LED driver B350B12D1-2

444

Best Hong Kong

$6.49 + shipping

Buck driver

12-12 V

350 mA
constant current

23 mm x 19 mm x 14 mm

Last updated 10 Jun 2011.

2x AMC7135
(NANJG 10)

PCB Components

$7.80 (approx)
€4.45 (actual) + shipping

Linear regulator

3.3-6.6 V
(for 0.6 V lower Vin see Tip 1 in the notes below)

3x NiMH,
4x alkaline,
1x Li-ion

50-97%

670 mA
constant current

17 mm

Linear regulator using two AMC7135 chips (thus the pictured driver is not this one). Note that the claimed input voltage doesn't allow for the polarity protection diode; the correct figures are listed in this table. See extra AMC7135 notes below.

Last updated 22 Dec 2011.

2x AMC7135
(NANJG 10)

3146

DealExtreme

$20.18 for 20

Linear regulator

3.3-6.6 V
(for 0.6 V lower Vin see Tip 1 in the notes below)

3x NiMH,
4x alkaline,
1x Li-ion

50-97%

670 mA
constant current

17 mm

Linear regulator. See extra AMC7135 notes below.

Last updated 17 Oct 2011.

3 mode

50527

DealExtreme

$2.80

User interface board

2.8-4.2 V

1x Li-ion

1200 mA

Can be modified to 1900 mA

17 mm

3 mode; high (100%), low (15%), strobe (9 Hz). Incomplete specifications - unknown regulation method, and unknown if direct drive when Vbat > Vf. Possibly just offers PWM mode control. Diameter figure in title inconsistent with listed dimensions (16 mm).

Last updated 14 Aug 2011.

3 mode, 700 mA

S008366

KaiDomain

$3.40
(up from $3.35)

Step-down (non-buck) driver

3.7-4.2 V

1x Li-ion

700 mA

17 mm

Very incomplete specs given, and specs given in the title are bad (mA/h is non-sensical). Three modes with no mode memory; low (unknown %), high, strobe.

Formerly product ID 9263.

Last updated 21 Nov 2011.

3 W - 6 W mains driver

10852

DealExtreme

$10.85
(sold out and/or discontinued)

Mains buck driver

100-240 V AC

1-3

115 V or 230 V AC mains power

700 mA
constant current

45 mm x 40 mm x 20 mm

Enclosed in white box, presumed transformer with buck regulator. Constant current out 700 mA @ 3-12 V.

Last updated 4 Dec 2011.

3 W Buck, 5 mode

7425

DealExtreme

$3.45
(sold out and/or discontinued)

Buck driver

3.6-8.4 V

3-6x NiMH,
1-2x Li-ion

1000 mA

17 mm - two boards in double layer

Buck driver using PWM for modes, although what exactly the modes are seems to vary - high, low, slow strobe, fast strobe, and either SOS or beacon (1 flash every 8 or 10 seconds). High is 700-1000 mA depending on input voltage. Apparently based on PT4105 chip - see separate notes below - and may be able to cope with higher input voltage.

Last updated 10 Jun 2011.

3 W PWM Step-down, 5 mode

7426

DealExtreme

$2.70 for 2 (formerly $2.38)

Step-down (non-buck) driver

3.6-3.6 V

3x NiMH,
1x Li-ion

1000 mA

16 mm

Unknown regulation method; no inductor so assumed to be just PWM, possibly with output smoothing using a capacitor. 5 modes, 3 of which are flashing; high, low, slow strobe, fast strobe, SOS. However, reviewers describe different sets of modes, such as high, medium, low, strobe, SOS; or high, low, slow strobe, fast strobe, 10 second beacon flash. Photos posted show a different IC to DX's photos.

Tip: This board may possibly operate as a straight-forward PWM driver if the capacitor is removed.

Last updated 1 Aug 2011.

3*1W LED Driver Adapter

113060

DealExtreme

$10.10

Mains buck driver

85-260 V AC

3-4

3 LEDs included

115 V or 230 V AC mains power

330 mA

Output 9-14 V. Output current listed here is a guess.

3 warm white LEDs included (in a wood grain coloured downlight; cool white and "coffee" versions also available)

12 Jan 2012.

3.0 A, 100 W mains driver

47306

DealExtreme

$25.99 (up from $25.50)

Mains buck driver

85-265 V AC

10-12

115 V or 230 V AC mains power

3000 mA
constant current

120 mm x 55 mm x 35 mm

Output voltage 32-36 V.

Last updated 7 Jul 2011.

3.6-9 V, 800 mA Regulated IC Circuit Board

the 40

Shining Beam

$5.25 for 2 + shipping

Buck driver

3.6-9 V

800 mA

16 mm

Stupidly, this driver completely vanishes from the retailer's web site when temporarily out of stock.

SKU 1060. Buck driver. Unknown driver chip.

Last updated 10 Jun 2011.

30W 12V boost driver

81843

DealExtreme

$13.99
(sold out and/or discontinued)

Boost driver

12-12 V

5-6

1800 mA

76 mm x 37 mm x 11 mm

Output voltage 16-20 V. "Compatible with 5 x 6 or 6 x 6 LED plate". Includes driver heatsink.

Last updated 13 Oct 2011.

30W boost driver

102663

DealExtreme

$11.40

Boost driver

12-34 V

10-12

12 V or 24 V automotive

950 mA

75 mm x 50 mm x 20 mm

Output voltage 35-38 V. Includes driver heatsink.

Last updated 21 Oct 2011.

30W boost driver

103735

DealExtreme

$12.20

Boost driver

9-15 V

3x Li-ion,
12 V automotive

1800 mA

70 mm x 50 mm x 19 mm

Output voltage 16-18 V. Includes driver heatsink.

Last updated 3 Nov 2011.

30W Boost/Buck

S020121

KaiDomain

$14.99

Boost driver and buck driver

3-18 V

1-4

2-4x Li-ion

2800 mA

26 mm x 17mm high, two boards in double layer

Output current varies from claimed 5 A for 1 LED (which disagrees with the claimed 8-10 W) to 3 A for 3-4 LEDs. However, 2.8 A is also claimed by sales staff answering two separate thread questions for the 5 mode version - buyer beware. 3 modes with memory; low, medium, high (no mention of ratios/duty cycle). Low voltage protection at 5.7 V, thermal protection (heatsinking possibly required).

9 Jan 2012.

30W Boost/Buck

S020077

KaiDomain

$14.99

Boost driver and buck driver

3-18 V

1-4

2-4x Li-ion

2800 mA

26 mm x 17mm high, two boards in double layer

Output current varies from claimed 5 A for 1 LED (which disagrees with the claimed 8-10 W) to 3 A for 3-4 LEDs. However, 2.8 A is also claimed by sales staff answering two separate thread questions - buyer beware. 5 modes with memory; high, medium, low (no mention of ratios/duty cycle), strobe, SOS. Low voltage protection at 5.7 V, thermal protection (heatsinking possibly required).

9 Jan 2012.

3A Circuit Driver for Bike Light

S020082

KaiDomain

$12.99

Buck driver

6-15 V

3000 mA

26 mm x 14mm high, two boards in double layer

Thermal protection.

Last updated 18 Dec 2011.

3A, 3 mode driver

57779

DealExtreme

$5.00

Buck driver

6-18 V

1-3

71-91%

2800 mA
constant current

22 mm x 14 mm high - two boards in double layer

Three modes; high, low, fast strobe. Regulation appears to be reasonably good. Modification for single mode and test results for 1 to 3 LEDs are in this CPF thread.

Last updated 11 Nov 2011.

3A, 3 mode driver

S010116

KaiDomain

$25.66 for 5

Buck driver

8.4-12 V

3000 mA

Said to be suitable for Cree XM-L. Probably the same as this driver from DX.

Formerly product ID 11384.

Last updated 21 Nov 2011.

3A, 3 mode LED driver

AC011011

Other

$7.60

Buck driver

5.5-15 V

90-95%

3000 mA

19 mm x 8 mm high

3 modes; low (10%), high, medium (35%). Recommended use with maximum 12 V input.

13 Jan 2012.

3A, 3 mode LED driver

AC011021

Other

$5.10

Buck driver

8.4-12 V

3000 mA

22 mm x 14 mm high - two boards in double layer

Incomplete specs - buyer beware. Possibly the same as sku.57779 from DX (which is cheaper). Size listed here assumes that.

13 Jan 2012.

3W E27/GU10 driver

82748

DealExtreme

$3.10

Mains buck driver

GU10 and/or E27 driver

90-265 V AC

115 V or 230 V AC mains power

90%

315 mA

54 mm x 28 mm x 23 mm

Output voltage 8-11 V. Stated as being suitable for E27 or GU10 bulbs but it's significantly larger than the typical size for those drivers.

Last updated 30 Aug 2011.

3W LHD(?) grey case

80065

DealExtreme

$15.40

Mains buck driver

220-240 V AC

3 LEDs included

230 V AC mains power

330 mA

Output current is a guess.

3 red LEDs included (in a fancy acrylic downlight). Also available in green for a little more.

Last updated 7 Dec 2011.

3W mains driver

81782

DealExtreme

$2.70

Mains buck driver

GU10 and/or E27 driver

90-265 V AC

115 V or 230 V AC mains power

90%

320 mA

25 mm x 15 mm x 15 mm

Output voltage 10-12V. Incomplete specifications given, output current is guess - buyer beware. Claimed minimum efficiency listed here.

This was formerly listed by DX as an 8.4W driver providing 675 mA.

Last updated 7 Dec 2011.

3W mains driver

81780

DealExtreme

$2.50

Mains buck driver

GU10 and/or E27 driver

90-265 V AC

115 V or 230 V AC mains power

90%

1000 mA

25 mm x 15 mm x 15 mm

November 2011: Output voltage 3-4 V. The claimed output current of 1000 mA is higher than the normal ~700 mA for "3W" LEDs - buyer beware.

Previously: 675mA. Photo shows 1*3W but DX's supplier claims output voltage 10-12 V - buyer beware.

Claimed minimum efficiency listed here.

Last updated 23 Nov 2011.

3W mains driver

73714

DealExtreme

$3.20

Mains buck driver

GU10 and/or E27 driver

85-265 V AC

115 V or 230 V AC mains power

675 mA

40 mm x 28 mm x 24 mm

Output voltage 2.5-4.0 V. Said to be suitable for E27 or GU10 bulbs but it's bigger than drivers usually are for that.

Last updated 6 Sep 2011.

3x 1 W LED driver B350B12D1-3

445

Best Hong Kong

$6.95 + shipping

Buck driver

12-12 V

350 mA
constant current

23 mm x 19 mm x 14 mm

Output voltage range is so tight it can't be used to drive three red or amber LEDs.

Last updated 10 Jun 2011.

3x 1W, yellow case

71997

DealExtreme

$16.70

Mains buck driver

85-240 V AC

3 LEDs included

115 V or 230 V AC mains power

320 mA

Output current is assumed.

3 warm white LEDs included (in an aluminium downlight).

Last updated 14 Jun 2011.

3x 3 W LED driver B700B12D3-3

447

Best Hong Kong

$7.95 + shipping

Buck driver

12-12 V

700 mA
constant current

23 mm x 19 mm x 14 mm

Output voltage range is so tight it can't be used to drive three red or amber LEDs.

Last updated 10 Jun 2011.

3x AMC7135 (TR-025,
formerly TR-0050 or TR-0025,
formerly TR-025)

26109

DealExtreme

$2.19

Linear regulator

2.7-6 V
(no polarity protection diode - see notes below)

3x NiMH,
4x alkaline,
1x Li-ion

50-97%

1000 mA
constant current

17 mm

Latest version: TR-025 (again). Three AMC7135 chips with space on the board for a fourth.

Previously: Caution: The TR-0050 (also labelled as TR-0025) has replaced the TR-025. It is a different board and ships with only 2 or 3 AMC7135 chips and for some reason a capacitor between battery positive and battery negative. Does not have a polarity protection diode. See extra AMC7135 notes below.

TR-025 (discontinued): Apparently a four AMC7135 linear current regulator but identifying marks have very roughly been removed for photos.

Claims to provide different current outputs (1-1.2 A) to different Cree efficacy bins. I think NOT.

Last updated 15 Nov 2011.

3x AMC7135 (TR-0026)

25518

DealExtreme

$2.36

Linear regulator

2.7-6 V
(no polarity protection diode - see notes below)

3x NiMH,
4x alkaline,
1x Li-ion

50-97%

1000 mA
constant current

15 mm

Linear regulator, apparently a three AMC7135 board but identification marks on the chips have been removed for the photo. What would normally be a standard polarity protection diode actually looks like a capacitor between battery positive and battery negative. See extra AMC7135 notes below.

Claims to provide different current outputs (0.7-1 A) to different Cree efficacy bins. I think NOT.

Last updated 10 Jun 2011.

3x AMC7135, 16 mode

S003214

KaiDomain

$4.08
(up from $3.99)

Linear regulator

3.3-6.1 V
(for 0.6 V lower Vin see Tip 1 in the notes below)

3x NiMH,
4x alkaline,
1x Li-ion

50-97%

1000 mA

17 mm

Uses three AMC7135 linear regulator chips and possibly an ATtiny13V for PWM modes (16 modes in 3 groups). Space on the board for a 4th AMC7135. See extra AMC7135 notes below.

Formerly product ID 1677.

Last updated 21 Nov 2011.

3x AMC7135, 16 or 17 mode

S009743

KaiDomain

$3.27 each
(up from $3.20),
also available in 5 pack

Linear regulator

3.3-6.1 V
(for 0.6 V lower Vin see Tip 1 in the notes below)

3x NiMH,
4x alkaline,
1x Li-ion

50-97%

1000 mA
constant current

17 mm

Claimed in different places to be both 16 and 17 modes; three groups, including one with no flashing modes.

Formerly product ID 10996. Also available in a 5 pack, S009744 (formerly product ID 10997).

Last updated 21 Nov 2011.

3x AMC7135, 19 mode

S003258

KaiDomain

$4.99

Linear regulator

2.7-5.5 V

3x NiMH,
4x alkaline,
1x Li-ion

50-97%

1000 mA
constant current

17 mm

Linear regulator using three AMC7135 chips and a PWM mode controller. Note that the pictures provided are of a standard 3x AMC7135 board with no mode controller - buyer beware - hence unknown polarity protection; input voltages stated here are without that diode, and the typical 5.5 V maximum for a microprocessor mode controller. See extra AMC7135 notes below.

Formerly product ID 1696.

Last updated 21 Nov 2011.

3x AMC7135, 2 mode
(AK-47)

S004659

KaiDomain

$3.68 each
(down from $3.98),
also available in 5 pack and 20 pack

Linear regulator

3.3-6.1 V
(for 0.6 V lower Vin see Tip 1 in the notes below)

3x NiMH,
4x alkaline,
1x Li-ion

50-97%

1000 mA
constant current

17 mm

Linear regulator board using PWM for modes; high 1,000 mA, low 150 mA. Mode memory. Alternate mode groups may be selectable by using the star-shaped contacts, as detailed here. A review is here. See extra AMC7135 notes below.

Formerly product ID 1801. Also available in a 5 pack, S004660 (formerly product ID 1802). Also available in a 20 pack, S006268 (formerly product ID 6052), but with the low mode just 50 mA.

Last updated 21 Nov 2011.

3x AMC7135, 5 mode
(AK-47)

S009484

KaiDomain

$3.50
(up from $3.44)

Linear regulator

3.3-6.1 V
(for 0.6 V lower Vin see Tip 1 in the notes below)

3x NiMH,
4x alkaline,
1x Li-ion

50-97%

1000 mA
constant current

17 mm

Linear regulator using three AMC7135 chips (formerly listed as having four) and an ATtiny13A for PWM mode control. Five modes - high, medium, low, strobe, SOS. Alternate mode groups can be selectable by using the star-shaped contacts, as detailed here. See extra AMC7135 notes below.

Formerly product ID 9605.

Last updated 21 Nov 2011.

3x AMC7135
(NANJG 10)

PCB Components

$10.30 (approx)
€5.45 (actual) + shipping

Linear regulator

3.3-6.6 V
(for 0.6 V lower Vin see Tip 1 in the notes below)

3x NiMH,
4x alkaline,
1x Li-ion

50-97%

1000 mA
constant current

17 mm

Linear regulator using three AMC7135 chips (thus the pictured driver is not this one). Note that the claimed input voltage doesn't allow for the polarity protection diode; the correct figures are listed in this table. See extra AMC7135 notes below.

Last updated 22 Dec 2011.

3x AMC7135
(TR0026)

LFD68G

Other

$1.48

Linear regulator

2.7-6 V
(for 0.6 V lower Vin see Tip 1 in the notes below)

3x NiMH,
4x alkaline,
1x Li-ion

1000 mA
constant current

15 mm

Linear regulator using three AMC7135 chips.

Last updated 23 Oct 2011.

3x1W

48912

DealExtreme

$20.60

Mains buck driver

95-265 V AC

3 LEDs included

115 V or 230 V AC mains power

350 mA

Incomplete specs - output current listed is a guess.

3 white LEDs included (in a fancy acrylic downlight).

Last updated 10 Jun 2011.

3x1W 220V

48093

DealExtreme

$16.00
(sold out and/or discontinued)

Mains buck driver

220-240 V AC

3 LEDs included

230 V AC mains power

330 mA

Output 310-350 mA.

3 LEDs included (in a fancy copper coloured holder) - cool white.

Last updated 10 Jun 2011.

3x1W blue label

48724

DealExtreme

$17.40

Mains buck driver

85-265 V AC

3 LEDs included

115 V or 230 V AC mains power

330 mA

Incomplete specs - output current listed is a guess.

3 white LEDs included (in a fancy acrylic downlight).

Last updated 10 Jun 2011.

3x1W mains driver

64284

Other

$3.42

Mains buck driver

85-265 V AC

115 V or 230 V AC mains power

320 mA

Output voltage 8-12 V.

Last updated 10 Jun 2011.

3x AMC7135, 17 mode (formerly 16 mode)
(NANJG 101-AK)

7612

DealExtreme

$3.60

Linear regulator

3.3-6.1 V
(for 0.6 V lower Vin see Tip 1 in the notes below)

3x NiMH,
4x alkaline,
1x Li-ion

50-97%

1000 mA
constant current

17 mm

Linear regulator using three AMC7135 chips and a PWM mode controller (ATtiny13V running the PWM at 4.7 kHz); includes a group with three well-spaced modes and no flash or strobe! Now with 17 modes. I got slightly different timing on the third group though, and call them different things - low (10%), medium (35%), high (100%), fast strobe, police strobe, beacon (1 flash per 3.5 sec), fast beacon (1 flash per 1.4 sec), slow beacon (1 flash per 11 sec), SOS (1 set per 11 sec). The latest boards have an empty space all ready for a 4th AMC7135. They may also have low battery detection - see here. See extra AMC7135 notes below.

Tip 3: Methods for wiring this board in parallel with another AMC7135 board are described here, with lots of colourful diagrams.

Tip 4: Modes can be disabled by following the instructions in this thread.

Last updated 31 Jul 2011.

3x AMC7135, 19 mode (NANJG 15)

417

Other

$4.50 + shipping

Linear regulator

3.3-6.1 V
(for 0.6 V lower Vin see Tip 1 in the notes below)

3x NiMH,
4x alkaline,
1x Li-ion

50-97%

1000 mA
constant current

17 mm

Formerly 2 mode. Linear regulator board using three AMC7315 chips and probably a PIC12F629 for PWM mode control. Has a group with high/medium/low without flash or strobe. Low mode 120 mA. Note that the claimed input voltage doesn't allow for the polarity protection diode, which is confirmed by the mention that it operates best over 3.5 V; the more likely correct figures are listed in this Driver List table. See extra AMC7135 notes below.

Last updated 10 Jun 2011.

3x AMC7135, 20 mode (LDCH)

7879

DealExtreme

$3.95
(sold out and/or discontinued)

Linear regulator

3.3-6.1 V
(for 0.6 V lower Vin see Tip 1 in the notes below)

3x NiMH,
4x alkaline,
1x Li-ion

50-97%

1000 mA
constant current

17 mm

Linear regulator using three AMC7135 chips and a PWM mode controller. See extra AMC7135 notes below.

Last updated 10 Jun 2011.

3x AMC7135, 3 mode
(AK-47)

S003256

KaiDomain

$3.75
(up from $3.69,
down from $4.99)

Linear regulator

3.3-6.1 V
(for 0.6 V lower Vin see Tip 1 in the notes below)

3x NiMH,
4x alkaline,
1x Li-ion

50-97%

1000 mA
constant current

17 mm

Uses three AMC7135 linear regulator chips and ATtiny13V for PWM modes - low, medium, high according to gunga, not the other way around. Is not 1.2 A output as claimed, but you might get 1.1 A. Changing the mode group may also be possible using the contacts on the bottom of the driver board. See extra AMC7135 notes below.

Formerly product ID 1694 and 8020.

Last updated 21 Nov 2011.

3x AMC7135, 5 mode
(AK-47)

6190

DealExtreme

$3.19

Linear regulator

3.3-4.5 V
(for 0.6 V lower Vin see Tip 1 in the notes below)

3x NiMH,
4x alkaline,
1x Li-ion

50-97%

1000 mA
constant current

17 mm (maybe 15 mm - see tip 3)

Linear regulator using three AMC7135 chips and a ATtiny13V for PWM mode control. 5 modes with memory; high 100%, medium 35%, low 20% (or 5% according to brted's review), strobe, SOS. Alternate mode groups can be selected by using the star-shaped contacts, as detailed here. Unknown why maximum voltage is specified at only 4.5 V instead of 6 V (6.6 V with a polarity protection diode). See extra AMC7135 notes below or this CPF thread. A review is here.

Tip 3: One user reports he was able to sand it down to 15 mm diameter.

7 Jan 2012.

3x AMC7135
(NANJG 10)

1885

DealExtreme

$16.58 for 10, also available in 20 pack

Linear regulator

3.3-6.6 V
(for 0.6 V lower Vin see Tip 1 in the notes below)

3x NiMH,
4x alkaline,
1x Li-ion

50-97%

1000 mA
constant current

17 mm

Linear regulator. This board comes with one AMC7135 connected and the other two just needing small solder bridges - very useful for using a switch instead of the solder bridges to change from ¹/₃ amp to ²/₃ amp or 1 amp. Also available as a 20 pack. See extra AMC7135 notes below.

Last updated 10 Jun 2011.

4-5*1W LED Driver Adapter

113062

DealExtreme

$14.80

Mains buck driver

85-260 V AC

4-5

5 LEDs included

115 V or 230 V AC mains power

330 mA

Output voltage 12-18 V. Output current listed here is a guess.

5 warm white LEDs included (in an aluminium downlight).

12 Jan 2012.

404 Waterproof LED Driver

Other

$22.00 + shipping
(sold out and/or discontinued)

Mains buck driver

110-250 V AC

3-10

115 V or 230 V AC mains power

46-89%

350 mA
constant current

180 mm (?) x 27 mm x 26 mm

This product has been replaced on the retailer's web site with an LED optic. Oh boy. The driver may still be available elsewhere on the site.

Output voltage 10-32 V, maximum output power 11.2 W. Specs state maximum input 220 V AC but label more sensibly states 250 V AC. Waterproof, IP66 rating.

Last updated 6 Jul 2011.

40W boost driver

102540

DealExtreme

$12.30

Boost driver

12-34 V

10-12

12 V or 24 V automotive

1300 mA

69 mm x 50 mm 19 mm

Output voltage 35-38 V. Includes driver heatsink.

Last updated 21 Oct 2011.

4x AMC7135 V2, 7 mode

S020075

KaiDomain

$4.49 each
also available in 5 pack

Linear regulator

2.7-4.5 V

1x Li-ion,
3x NiMH

1520 mA
constant current

17 mm

Claimed 380 mA per each of 4 AMC7135 linear regulator chips. 7 modes in 8 groups determined by binary combinations of 3 solder bridges; low (3-5 mA), medium (35%), high, strobe (10 Hz), slow strobe (2 Hz), SOS, beacon. Mode memory determined by another solder bridge. Low voltage warning at 2.8 V, claimed minimum 2.5 V; the AMC7135 datasheet says 2.7V minimum. No short circuit protection, no reverse polarity protection.

Also available as a 5 pack, S020076.

Last updated 18 Dec 2011.

4x AMC7135, 3 mode (NANJG 101-AK)

the 133

Shining Beam

$5.95 + shipping

Linear regulator

3.3-6.1 V
(for 0.6 V lower Vin see Tip 1 in the notes below)

3x NiMH,
4x alkaline,
1x Li-ion

50-97%

1400 mA
constant current

17 mm

Stupidly, this driver completely vanishes from the retailer's web site when temporarily out of stock.

SKU 1218. Buyer beware - the claim to be a "buck circuit board" (formerly claimed to be boost/buck driver) is clearly false, since it has four AMC4135 linear regulators plus an ATtiny13V PWM controller giving three modes - claimed low (60 mA), medium (440 mA), high (1.4 A); formerly claimed low (120 mA), medium (350 mA), high (1.4 A); tested low (60-80 mA), medium (440-450 mA), high (1420 mA). May be able to be converted to 5 modes by removing a solder bridge. See extra AMC7135 notes below.

The URL of this driver used to be what was claimed to be a 5 mode buck/boost driver. This 3 mode driver is double listed on their site.

Last updated 21 Nov 2011.

4x AMC7135, 5 mode
(NANJG 101-AK-A1)

S009959

KaiDomain

$13.99 for 5
(up from $13.71)

Linear regulator

3.3-6.1 V
(for 0.6 V lower Vin see Tip 1 in the notes below)

3x NiMH,
4x alkaline,
1x Li-ion

50-97%

1400 mA
constant current

17 mm

Incomplete specifications given. The "1560mAh" in the title and "1560mAh current" under the heading "Hightlight" are meaningless, other than being typical of the site. Default is 5 modes - low (2%), medium (28%), high (100%), strobe, SOS. Can also be set to 3 modes (low, medium, high) using a solder bridge.

Formerly product ID 11218.

Last updated 21 Nov 2011.

4x AMC7135
(NANJG 10)

PCB Components

$8.50 (approx)
€5.95 (actual) + shipping

Linear regulator

3.3-6.6 V
(for 0.6 V lower Vin see Tip 1 in the notes below)

3x NiMH,
4x alkaline,
1x Li-ion

50-97%

1330 mA
constant current

17 mm

Linear regulator using four AMC7135 chips (thus the pictured driver is this one). Note that the claimed input voltage doesn't allow for the polarity protection diode; the correct figures are listed in this table. See extra AMC7135 notes below.

Last updated 22 Dec 2011.

4x AMC7135 (NANJG 111)

3178

DealExtreme

$33.94 for 20

Linear regulator

3.3-6.6 V
(for 0.6 V lower Vin see Tip 1 in the notes below)

3x NiMH,
4x alkaline,
1x Li-ion

50-97%

1330 mA
constant current

17 mm

Linear regulator using four AMC7135 chips. See extra AMC7135 notes below.

Formerly also available as a 10 pack (which for some reason has changed to a 15 pack).

Last updated 10 Jun 2011.

5 mode

50525

DealExtreme

$2.90

User interface board

2.7-4.2 V

1 x Li-ion

1300 mA

17 mm

Incomplete specifications - unknown regulation method, and unknown if direct drive when Vbat > Vf. Probably just offers PWM mode control; unknown maximum current handling. 5 mode with memory; high (100%), medium (25%), low (5%), strobe (11 Hz), SOS (or just SO as reported by one user). Diameter figure in title inconsistent with listed dimensions.

Last updated 10 Jun 2011.

5 mode board

Shining Beam

$5.95 + shipping
(sold out and/or discontinued)

Boost driver and buck driver

4-15 V

1000 mA

17 mm

This driver has been replaced on the retailer's web site with a 3 mode linear regulator (with the same URL). Plain weird or a typo?

Old details: Claims to be a boost/buck driver, implying it can handle multiple LEDs, but no information is provided about that. 5 modes - high (1000 mA), medium (300 mA), low (100 mA), strobe, SOS. Mode memory.

Last updated 10 Jun 2011.

5 mode controller

S010105

KaiDomain

$6.93 for 5
(down from $9.41)

Unspecified driver type

3.7-4.2 V

1x Li-ion

2000 mA

17 mm

Incomplete specifications given. Claimed to be for Cree XM-L but only has 2 A maximum output current. No inductor present so it's not a buck driver. Input voltage specs indicate it may be just a PWM driver.

Formerly product ID 11372.

Last updated 18 Dec 2011.

5 W driver

S009736

KaiDomain

$2.65
(up from $2.60)

Buck driver

3-18 V

1000 mA

17 mm

Incomplete and non-sensical specifications given - output current a guess. The specs that are provided are the same as this driver from DX.

Formerly product ID 10989.

Last updated 21 Nov 2011.

50W boost driver

102650

DealExtreme

$12.40

Boost driver

12-34 V

10-12

12 V or 24 V automotive

1500 mA

69 mm x 50 mm x 20 mm

Output voltage 35-38 V. Includes driver heatsink.

Last updated 21 Oct 2011.

5A Circuit Driver for Bike Light

S020081

KaiDomain

$13.39

Buck driver

6-15 V

5000 mA

26 mm x 14mm high, two boards in double layer

Thermal protection.

Last updated 18 Dec 2011.

5W E27/GU10 mains driver

82745

DealExtreme

$3.30

Mains buck driver

GU10 and/or E27 driver

85-265 V AC

4-5

115 V or 230 V AC mains power

90%

315 mA

55 mm x 26 cm x 23 mm

Output voltage 12-19 V. Stated as being suitable for E27 or GU10 bulbs but it's significantly larger than the typical size for those drivers.

Last updated 31 Aug 2011.

5W mains driver

64274

Other

$5.82

Mains buck driver

85-265 V AC

115 V or 230 V AC mains power

680 mA

Output voltage 5-7 V.

Also available with a 2s2p LED (four dice in one LED).

Last updated 23 Oct 2011.

5W mains driver

81776

DealExtreme

$2.80

Mains buck driver

GU10 and/or E27 driver

90-265 V AC

4-6

115 V or 230 V AC mains power

90%

315 mA

23 mm x 15 mm x 15 mm

Output voltage 12-18 V. Claimed minimum efficiency listed here.

Last updated 6 Jul 2011.

5x 1W, yellow case

73128

DealExtreme

$19.30

Mains buck driver

85-265 V AC

5 LEDs included

115 V or 230 V AC mains power

320 mA

Output current is assumed.

5 cool white LEDs included (in an aluminium downlight).

Last updated 3 Aug 2011.

6-12*1W

102691

DealExtreme

$4.30

Mains buck driver

85-265 V AC

6-12

115 V or 230 V AC mains power

300 mA

50 mm x 28 mm x 21 mm

Output voltage 20-48 V.

Last updated 25 Oct 2011.

6W mains driver

81774

DealExtreme

$3.00

Mains buck driver

GU10 and/or E27 driver

90-265 V AC

3-4

115 V or 230 V AC mains power

90%

435 mA

20 mm x 15 mm x 15 mm

Output voltage 8-12V. Claimed minimum efficiency listed here.

Last updated 6 Jul 2011.

6x AMC7135 V2, 7 mode

S020064

KaiDomain

$4.59 each
also available in 5 pack

Linear regulator

2.7-4.5 V

1x Li-ion,
3x NiMH

2280 mA
constant current

17 mm

Claimed 380 mA per each of 6 AMC7135 linear regulator chips. 7 modes in 8 groups determined by binary combinations of 3 solder bridges; low (3-5 mA), medium (35%), high, strobe (10 Hz), slow strobe (2 Hz), SOS, beacon. Mode memory determined by another solder bridge. Low voltage warning at 2.8 V, claimed minimum 2.5 V; the AMC7135 datasheet says 2.7V minimum. No short circuit protection, no reverse polarity protection.

Also available as a 5 pack, S020065.

Last updated 18 Dec 2011.

700 mA, 2.5 W

4382

DealExtreme

$10.66 for 5
(sold out and/or discontinued)

Boost driver

3-3 V

2x AA

70%

700 mA

16 mm

Version 4: As of April 2010 buck drivers are being sent instead of boost drivers. Buyer beware. Update: Product is sold out.

Version 3: As of August 2008 there seems to be a new version which may have different components and may not cope with anything over 3.0 V.

Version 2: Boost driver using Zetec C300 control chip, no capacitors. 100~700 mA output, dependent on input voltage. Test data discussion (in which various people point out the test data is wrong).

Version 1: 15 mm diameter.

Last updated 10 Jun 2011.

700mA 40V-68V Constant Current LED mains driver

13985

DealExtreme

$17.75
(sold out and/or discontinued)

Mains buck driver

110-240 V AC

11-20

115 V or 230 V AC mains voltage

700 mA
constant current

137 mm x 33 mm x 33 mm

Output 40-68 V.

Last updated 10 Jun 2011.

7W mains driver

81773

DealExtreme

$3.20

Mains buck driver

GU10 and/or E27 driver

90-265 V AC

6-8

115 V or 230 V AC mains power

95%

325 mA

35 mm x 15 mm x 15 mm

Output voltage 18-26 V. Claimed minimum efficiency listed here. Assumed to be a GU10/E27 driver because of the description "Suitable for common spotlight, and ball lamp cup". It's quite big, though.

Last updated 6 Jul 2011.

7W mains driver

81778

DealExtreme

$7.70

Mains buck driver

GU10 and/or E27 driver

90-265 V AC

115 V or 230 V AC mains power

90%

315 mA

45 mm x 15 mm x 15 mm

Output voltage 10-12 V. Claimed minimum efficiency listed here. Claimed to be a GU10/E27 driver. It's quite big, though. Claim of "Adjustable LED light chip" is not explained.

Last updated 6 Jul 2011.

7W mains driver

82746

DealExtreme

$4.00

Mains buck driver

85-265 V AC

6-8

115 V or 230 V AC mains power

95%

300 mA

70 mm x 33 mm x 21 mm

Output voltage 17-26 V.

Last updated 30 Aug 2011.

800 mA buck driver

S007120

KaiDomain

$10.20 for 4
(up from $10.00)

Buck driver

3.6-9 V

3-6x NiMH, 1-2x Li-ion

800 mA

17 mm

Incomplete specs provided. From the pictures it looks like it's based on the Zetex C310 chip. Size stated in this table is an educated guess. In the 3rd photo, focusing the camera on the wires sticking out the back might be arty but isn't very useful.

Formerly product ID 7330.

Last updated 21 Nov 2011.

8W mains driver

81775

DealExtreme

$3.50

Mains buck driver

GU10 and/or E27 driver

90-265 V AC

6-8

115 V or 230 V AC mains power

95%

315 mA

35 mm x 15 mm x 15 mm

Output voltage 18-26 V. Claimed minimum efficiency listed here. Possibly usable as a GU10/E27 driver, as similar but larger drivers are claimed to be.

Last updated 6 Jul 2011.

8x AMC7135 (CPF)

CPF member

$9.36 + shipping

Linear regulator

3.3-6.1 V
(for 0.6 V lower Vin see Tip 1 in the notes below)

4x NiMH

50-97%

2800 mA
constant current

17 mm with components on both sides

Limited availability from CPF member download. Multimode board with four AMC7135 linear regulators on each side (8 total) and an ATtiny13A for PWM mode control. Mode group selectable by connecting star pads on the board, like an AK-47. 5 modes in default group; low (0.13 A), medium (0.93 A), high (2.8 A), strobe, SOS. See extra AMC7135 notes below.

May have sold a previous 3 mode version like this; high (2.8 A), medium (1 A), low (0.3 A).

Last updated 30 Oct 2011.

8x AMC7135 (homemade)

Other

$6.88 (varies)
Make your own - fun!

Linear regulator

3.3-6.6 V
(for 0.6 V lower Vin see Tip 1 in the notes below)

4x NiMH

50-97%

2800 mA
constant current

17 mm

Instructions for making your own version. Actual price will vary depending on what boards you use to make it - modes can be included if desired. See extra AMC7135 notes below.

Last updated 23 Oct 2011.

8x AMC7135 V2,
7 mode

S020073

KaiDomain

$4.79 each
also available in 5 pack

Linear regulator

2.7-4.5 V

1x Li-ion,
3x NiMH

50-97%

3040 mA
constant current

17 mm

Claimed 380 mA per each of 8 AMC7135 linear regulator chips. 7 modes in 8 groups determined by binary combinations of 3 solder bridges; low (3-5 mA), medium (35%), high, strobe (10 Hz), slow strobe (2 Hz), SOS, beacon. Mode memory determined by another solder bridge. Low voltage warning at 2.8 V, claimed minimum 2.5 V; the AMC7135 datasheet says 2.7V minimum. No short circuit protection, no reverse polarity protection.

Also available as a 5 pack, S020074.

13 Jan 2012.

8x AMC7135,
1 mode
(NANJG 105C)

S004338

KaiDomain

$4.83
(down from $6.63,
up from $5.70,
down from $5.99)

Linear regulator

3.3-6.6 V
(for 0.6 V lower Vin see Tip 1 in the notes below)

1x Li-ion,
4x NiMH

50-97%

2800 mA
constant current

17 mm

Updated version: This is a NANJG 105C without the PWM controller board to give modes. Why the previous price was so much more expensive than the 5 mode version is beyond my guessing ability.

Previous version: This is just two 4x AMC7135 boards connected back to back. See extra AMC7135 notes below.

Warning: Even with the product update the page still contains a full size 6 megapixel image - pretty typical for KD's stupid site.

Formerly product ID 1770.

13 Jan 2012.

8x AMC7135,
1 mode
(NANJG 105C)

AC011012

Other

$4.50

Linear regulator

3.3-6.6 V
(for 0.6 V lower Vin see Tip 1 in the notes below)

1x Li-ion,
4x NiMH

50-97%

2800 mA
constant current

17 mm

Linear regulator using eight AMC7135 chips. Single mode. Apparently a NANJG 105C board with no mode controller.

13 Jan 2012.

8x AMC7135,
3 mode
(NANJG 106)

the 132

Shining Beam

$6.75 (formerly $6.95) + shipping

Linear regulator

3.3-6.1 V
(for 0.6 V lower Vin see Tip 1 in the notes below)

4x NiMH

50-97%

2800 mA
constant current

17 mm with components on both sides

Stupidly, this driver completely vanishes from the retailer's web site when temporarily out of stock.

SKU 1217. Multimode board with a PWM mode controller and eight AMC7135 linear regulators (four on each side of the board). 3 modes with memory; low 140 mA, medium 1 A, high 2.8 A (formerly listed as 2.5 A). Claimed input voltage of 2.8-6.0 V doesn't allow for the polarity protection diode; the more likely correct figures are listed in this Driver List table. The output of AMC7135 chips varies a little, so high might be as much as 2.8 A (as mentioned here and here). Also pictured in this post and this post.

13 Jan 2012.

8x AMC7135,
5 mode
(apparently NANJG 105C)

AC011018

Other

$5.30

Linear regulator

3.3-6.1 V
(for 0.6 V lower Vin see Tip 1 in the notes below)

1x Li-ion,
4x NiMH

50-97%

2800 mA
constant current

17 mm

Linear regulator using eight AMC7135 chips. 5 modes; unstated what they are. Apparently a NANJG 105C board; if so it has selectable mode groups (by solder bridge).

13 Jan 2012.

8x AMC7135,
5 mode
(NANJG 105 or 105A or 105C)

S009742

KaiDomain

$4.79 each
(up from $4.70),
also available in 5 pack

Linear regulator

3.3-6.1 V
(for 0.6 V lower Vin see Tip 1 in the notes below)

1x Li-ion,
4x NiMH

50-97%

2800 mA
constant current

17 mm (measured, not stated)

Incomplete specifications given. Uses 8 AMC7135 linear regulator chips with either a PIC12F629 microcontroller for modes, or an ATtiny13A for the 105C model (which is apparently the latest version). Modes are determined by the stars on the board - they provide AK-47 functionality (where a group of modes is hardwired using a solder link). Has the same basic mode groups as CPF user download's very similar driver (diagram here) except their order for the 105A is high (100%), medium (35%), low (4%). When low mode is started there is a momentary bright flash, and after about 2.5 seconds there's a very brief dropout (or "blink") that indicates the mode has been fixed - after that, switching off momentarily will not change the mode. Reviews written for 105 and 105A. As of Jan 2011 the 105C is being shipped.

The maximum voltage in this table is based on the microcontroller's maximum of 5.5 V plus 0.6 V for the polarity protection diode.

Tip: The circuit track for the first star does not need to be broken for the other stars to work.

Formerly product ID 10995. Also available as a 5 pack, S009835 (formerly product ID 11088).

13 Jan 2012.

9*1W mains driver

73365

DealExtreme

$4.00

Mains buck driver

GU10 and/or E27 driver

85-265 V AC

115 V or 230 V AC mains power

300 mA

36 mm x 16 mm x 15 mm

Output voltage 27-33 V. Not specifically stated as being suitable for GU10 or E27 bulbs but it's a similar size to those that are.

Last updated 12 Aug 2011.

9A Circuit Driver for Bike Light

S020079

KaiDomain

$13.99

Buck driver

6-15 V

9 A

26 mm x 14mm high, two boards in double layer

Thermal protection.

Last updated 18 Dec 2011.

9W mains driver

81777

DealExtreme

$3.50

Mains buck driver

GU10 and/or E27 driver

90-265 V AC

115 V or 230 V AC mains power

90%

625 mA

40 mm x 15 mm x 15 mm

Output voltage 9-12 V. Claimed minimum efficiency listed here. Assumed to be a GU10/E27 driver because of the description "Suitable for common spotlight, and ball lamp cup". It's quite big, though.

Last updated 6 Jul 2011.

9W mains driver

81779

DealExtreme

$4.00

Mains buck driver

GU10 and/or E27 driver

90-265 V AC

8-10

115 V or 230 V AC mains power

90%

315 mA

35 mm x 15 mm x 15 mm

Output voltage 25-30 V. Claimed minimum efficiency listed here. Assumed to be a GU10/E27 driver because of the description "Suitable for common spotlight, and ball lamp cup".

Last updated 6 Jul 2011.

A9 Buck Current Regulated 3.0V~8.4V 1.3A Flashlight PCB

S008846

KaiDomain

$3.55
(down from $3.88)

Buck driver

3-8.4 V

1300 mA

17 mm

Components on both sides of board, no centre battery terminal. There are an awful lot of components on that board for a single mode buck driver. Incomplete/inadequate specifications listed - unknown current regulation, unknown if the driver will step up the voltage if it's too low. The 1.3 A "maximum" implies it's not a constant current driver. Buyer beware.

Formerly product ID 9908.

Last updated 21 Nov 2011.

ACG D series LED drivers

ACG D series

Other

$9.95 + shipping
(sold out and/or discontinued)

Buck driver

9-40 V DC; also works with AC
(8-30 V AC, except 1.4 A version)

1-4

91%

1400 mA
constant current

42 mm x 32 mm x 12 mm

The URLs linked below have all been reused for various LED products, but the drivers may still be listed on their site elsewhere. Good luck finding them.

Incomplete specifications on manufacturer's and retailer's web sites (incompetent manufacturer?); output voltage/LED quantities unknown. However, by using the wizard on the manufacturer's site it appears they'll do 1-4 LEDs. The claimed maximum 91% efficiency is very good, if true, especially since the drivers (except the 1,400 mA) have a rectifier built in. Even if maximum efficiency is up there however, it's probably not representative of typical efficiency, especially since they all claim the same (except for the 500 mA version which claims 92%) - unlikely across the whole current output range. Soft start. PWM dimming with 0-10 V input or potentiometer. Available in versions with outputs of 350, 500, 700, 1,000 and 1,400 mA.

Last updated 10 Jun 2011.

AK-007

50526

DealExtreme

$3.10

Boost driver

0.8-1.5 V

1x AA
1x AAA

300 mA

12 mm - two boards in double layer

3 mode; high (100%), low (15%), strobe (9 Hz). Incomplete specs - output current is just a guess and probably varies significantly depending on input voltage.

Last updated 10 Jun 2011.

Ampere! 5000 mA

108

PCB Components

$42.00 (approx)
€30.95 (actual) + shipping

Buck driver

7-25 V

1-3

97%

5000 mA
constant current

Can be modified to 11 A

25 mm x 14 mm high

Output voltage up to ~14 V, output power up to ~70 W. Overhead ~1 V. Maximum claimed efficiency listed here; typical efficiency for any particular configuration unknown. Thermal protection. External PWM input.

Last updated 22 Dec 2011.

Ampere! 9000 mA

108

PCB Components

$42.00 (approx)
€30.95(actual) + shipping

Buck driver

7-25 V

1-3

97%

9 A
constant current

Can be modified to 11 A

25 mm x 14 mm high

Output voltage up to ~14 V, output power up to ~120 W. Overhead ~1 V. Maximum claimed efficiency listed here; typical efficiency for any particular configuration unknown. Thermal protection. External PWM input.

Last updated 22 Dec 2011.

Assembled Blue Shark with Remora UI

1164

Sandwich Shoppe

$55.00 + shipping
(sold out and/or discontinued)

Boost driver

2.7-25 V

1-5

980 mA
constant current

19 mm - two boards in double layer

This product has vanished from the retailer's web site.

Multimode boost regulator. Maximum input current 4 A. Available in two flavours - three mode Plain (low, medium, high) and four mode Special (with SOS).

Last updated 10 Jun 2011.

Assembled Shark Buck with Remora UI

1212

Sandwich Shoppe

$59.00 + shipping

Buck driver

5-15 V

1-3

75-77%

3000 mA
constant current

19 mm

Multimode high current buck driver. Available in two flavours - three mode Plain (low, medium, high) and four mode Special (with SOS). For some strange reason complete specifications are not readily available but some more information is available in this thread, where Wayne says you can drive "maybe 4" LEDs. (I can't see any explanation why the efficiency graph shows values 2% higher than the table.)

Last updated 10 Jun 2011.

Assembled Shark with Remora UI

1089

Sandwich Shoppe

$50.00 + shipping
(sold out and/or discontinued)

Boost driver

2.7-20 V

1-5

980 mA
constant current

19 mm - two boards in double layer

Last updated 10 Jun 2011.

Aurora 1-16x 3W, 700mA dimmable

AU-LEDD48CC

Aurora

$0.00 (approx)
£call (actual) + shipping

Mains buck driver

100-264 V AC

1-16

115 V or 230 V AC mains power

700 mA
constant current

164 mm x 46 mm x 32 mm

Dimmable with 1-10 V input (controller available separately). Output in two series of up to 8 LEDs each. Overload protection, short-circuit protection, thermal protection.

Last updated 10 Jun 2011.

Aurora 1-18W, 350mA dimmable

AU-LEDD16CC

Aurora

$116.00 (approx)
£55.00 (actual) + shipping

Mains buck driver

100-264 V AC

1-18

115 V or 230 V AC mains power

350 mA
constant current

155 mm x 38 mm x 24 mm

Dimmable with 1-10 V input (controller available separately). Output in two series of up to 9 LEDs each. Overload protection, short-circuit protection, thermal protection.

Last updated 10 Jun 2011.

Aurora 1-2x 3W, 700mA

AU-LED7061CC

Aurora

$35.00 (approx)
£16.50 (actual) + shipping

Mains buck driver

100-264 V AC

1-2

115 V or 230 V AC mains power

700 mA
constant current

50 mm x 50 mm x 20 mm

Overload protection, short-circuit protection, thermal protection. Output voltage 3-8.2 V.

Last updated 10 Jun 2011.

Aurora 1-6W 350mA

AU-LED0635CC

Aurora

$42.00 (approx)
£19.83 (actual) + shipping

Mains buck driver

100-264 V AC

1-6

115 V or 230 V AC mains power

350 mA
constant current

95 mm x 38 mm x 24 mm

Overload protection, short-circuit protection, thermal protection.

Last updated 10 Jun 2011.

Aurora 1-9 W, 350 mA

AU-LED09T

Aurora

$42.00 (approx)
£19.83 (actual) + shipping

Mains buck driver

100-264 V AC

1-9

115 V or 230 V AC mains power

350 mA
constant current

144 mm x 38 mm x 24 mm

Overload protection, short-circuit protection, thermal protection.

Last updated 10 Jun 2011.

Aurora 1-9W 350mA, waterproof

AU-LED09IP

Aurora

$56.00 (approx)
£26.50 (actual) + shipping

Mains buck driver

100-264 V AC

1-9

115 V or 230 V AC mains power

350 mA
constant current

144 mm x 38 mm x 24 mm

Waterproof, IP68 rating; up to 2 m underwater. Overload protection, short-circuit protection, thermal protection.

Last updated 10 Jun 2011.

Aurora 18W 700mA

AU-LED7018CC

Aurora

$91.00 (approx)
£43.17 (actual) + shipping

Mains buck driver

220-240 V AC

4-6

220-240 V AC mains power

700 mA
constant current

140 mm x 43 mm x 24 mm

Overload protection, short-circuit protection, thermal protection.

Last updated 10 Jun 2011.

Aurora 1x 1W, 350mA

AU-LED0135CC

Aurora

$23.00 (approx)
£14.17 (actual) + shipping

Mains buck driver

100-264 V AC

115 V or 230 V AC mains power

350 mA
constant current

38 mm x 27 mm x 21 mm

Overload protection, short-circuit protection, thermal protection.

Last updated 10 Jun 2011.

Aurora 24W, 700mA

AU-LED7024CC

Aurora

$105.00 (approx)
£14.17 (actual) + shipping

Mains buck driver

220-240 V AC

5-8

220-240 V AC mains power

700 mA
constant current

140 mm x 43 mm x 27 mm

Overload protection, short-circuit protection, thermal protection.

Last updated 10 Jun 2011.

Aurora 6W, 700mA

AU-LED706CC

Aurora

$42.00 (approx)
£19.83 (actual) + shipping

Mains buck driver

100-264 V AC

1-2

115 V or 230 V AC mains power

700 mA
constant current

94 mm x 38 mm x 25 mm

Overload protection, short-circuit protection, thermal protection.

Last updated 10 Jun 2011.

Aurora 9W 700mA, waterproof

AU-LED709IP

Aurora

$70.00 (approx)
£33.17 (actual) + shipping

Mains buck driver

100-264 V AC

1-3

115 V or 230 V AC mains power

700 mA
constant current

120 mm x 35 mm x 25 mm

Waterproof, IP68 rating; up to 2 m underwater (note that the primary lead is only 1 m long). Overload protection, short-circuit protection, thermal protection.

Last updated 10 Jun 2011.

Aurora 9W, 700mA

AU-LED709CC

Aurora

$56.00 (approx)
£26.50 (actual) + shipping

Mains buck driver

100-264 V AC

1-3

115 V or 230 V AC mains power

700 mA
constant current

145 mm x 38 mm x 25 mm

Overload protection, short-circuit protection, thermal protection.

Last updated 10 Jun 2011.

AX2002 Multi-level Buck, 3 mode

CPF member

$12.00 (formerly $10.40) + shipping

Buck driver

3.6-15 V

1-4

80-90%

1040 mA
constant current

Can be modified to 2000 mA

23 mm

Limited availability from CPF member download. Uses the popular AX2002 chip; this seems to be the only AX2002 driver available with modes.

Present, designation J: 3 modes; low (50 mA), medium (200 mA), high (1 A). No memory. A few of these have been sold pre-configured to 1.4 A.

Previously, designation H: 3 modes; high (1 A), medium (200 mA), low (30 mA). Has memory. 17 mm diameter. Input voltage 3.6-23 V, 1-6 LEDs.

Claimed 0.25 V headroom (the amount input voltage must be above output voltage); this is probably actually the feedback voltage (the voltage dropped across the current set resistor) - other AX2002 drivers have ~0.5 V headroom. It may be able to be set the output current up to 2 A, the rating for the AX2002.

Last updated 30 Oct 2011.

b2Flex v1.0

TaskLED

$30.00 + shipping
(sold out and/or discontinued)

Unspecified driver type

- V

1500 mA

Coming soon.

Last updated 10 Jun 2011.

B4X36V060-1, 20W mains driver

81476

DealExtreme

$11.30

Mains buck driver

180-265 V AC

6-12

230 V AC mains power

600 mA

Driver label says minimum input 180 V AC, claimed specs says 85 V AC. Output voltage 22-36 V. Waterproof, IP66 rating.

Last updated 6 Jul 2011.

Badboy

179

Sandwich Shoppe

$13.00 for all except $16.50 for 750 mA and 1 A versions + shipping

Boost driver

1.6-6 V

1-2

85-89%

1000 mA
constant current

14 mm

Boost regulator. Vin must be less than Vout. Maximum Iin 1.5 A. Constant current output, board available as a "blank" (add set resistor), or preset to 300 mA, 400 mA, 500 mA, 750 mA, or 1000 mA. Must always have a load connected.

Last updated 10 Jun 2011.

Badly regulated buck driver

S010147

KaiDomain

$9.13 for 5
(sold out and/or discontinued)

Buck driver

3-10 V

700 mA

16 mm

Output current stated to be 700-1000 mA; horrendous regulation!

Formerly product ID 11417.

Last updated 18 Dec 2011.

BB Nexgen

491

Sandwich Shoppe

$15.00 - $16 + shipping

Boost driver

2-6 V

80-91%

1000 mA
constant current

14 mm

Boost regulator, but apparently needs to be started with Vin between 3.4 V and Vf to start the full current regulation mode, otherwise it starts in safe mode, which is 1.5 A maximum input current. Constant current output, maximum 1 A. Board available as a "blank" (add set resistor), or preset to 400 mA, 500 mA, 750 mA and 1000 mA. Must always have a load connected.

Last updated 10 Jun 2011.

bFlex v3

bflex

TaskLED

$30.00 + shipping
(sold out and/or discontinued)

Buck driver

4-25 V

1-7

1000 mA
constant current

25 mm

Buck regulator. Constant current out 350-1000 mA (user reconfigurable) at up to 24 V, uController UI. Thermal and polarity protection included.

Last updated 10 Jun 2011.

Black Power v2

PCB Components

$34.00 (approx)
€24.95 (actual) + shipping

Buck driver

7.5-33 V

1-6

92%

2800 mA

28 mm

1.5 V overhead. External on/off input. Soft start. Efficiency claimed is maximum; typical efficiency unknown. Thermal protection.

Last updated 22 Dec 2011.

Blank 3 W mains driver

56223

DealExtreme

$13.80

Mains buck driver

85-265 V AC

1 LED included

115 V or 230 V AC mains power

680 mA

No specifications printed on driver.

1 white LED included (in a fancy flexible neck light).

Last updated 10 Jun 2011.

Blue Shark

1136

Sandwich Shoppe

$25.00 + shipping

Boost driver

2.7-25 V

1-10

"Great for use in Mag C & D and fixed lighting applications."

980 mA
constant current

19 mm

Boost regulator. Maximum input current 4 A, said by manufacturer to be still efficient >3 A. Regulates on voltage or current, output current adjustable from 50-980 mA (or greater by changing set resistor, although that would remove load protection) at maximum 32 V. Includes copper heatsink; improved thermal performance and higher output voltage over standard Shark.

I note that Wayne here recommends new buyers to get three.

Last updated 6 Jul 2011.

BoostPuck

04015

LED Supply

$29.99 + shipping

Boost driver

5-28 V

4-12

85-97%

350 mA
constant current

21 mm x 21 mm x 11 mm

Maximum output voltage 48 V. Input voltage must be at least 3 V lower than output voltage. Dimmable with external potentiometer (0-100%) and on board trim adjustment (75-125%). 7 pin SIP interface for PCB mounting; wiring harness optional extra. Output has short circuit protection (15 seconds) and open circuit protection.

There is a version without the on-board trim adjustment for a little lower cost (the page is wrong where it claims it does have it).

Last updated 10 Jun 2011.

Buck Driver 4-pack (v2)

3256

DealExtreme

$6.97 for 4

Buck driver

3.8-16 V

1-4

4+ NiMH,
2+ Li-ion

81-90%

930 mA
constant current

Can be modified to 1000 mA

17 mm x 6 mm high

New version using AX2002; now constant current output with 0.27 Ω set resistor, slightly larger diameter. Overhead is ~0.52 V. Test data and discussion here.

Tip: The output current can be increased (or decreased) by changing the set resistor appropriately (Rset = 0.25 / current) but the diode is a Schottky SS14, which has a maximum current limit of 1 A. Inexpensive 3 A Schottky diodes are listed here if you want to risk that site.

Old version: 16 mm diameter. The details still on the DX site are for this version. Buck regulator using Zetex C310. 800-1000 mA output dependent on input voltage, although a hack for lower output is explained here. When run at lower output it appears reasonably constant current regulated. Test data graph.

Last updated 21 Nov 2011.

BuckPuck

3021...

Other

$13.99 to $20.99 + shipping

Buck driver

5-32 V DC; also works with AC
(half available models are for DC, half for AC)

1-6

86-95%

1000 mA
constant current

20 mm x 20 mm x 11 mm

Available in many different forms, each with four versions with outputs of 350, 500, 700 or 1,000 mA. Half the forms are designed for low voltage AC, half for DC. Some forms have a built in trim adjustment for 40-110% output, some allow for an external trim adjustment. External connections vary - some forms have the wires built in, while most have from pins (4-7 of them) for PCB mounting. Wiring harnesses are also available, with and without potentiometer for trim adjustment. An additional capacitor across the input may be needed to smooth input power, as described here.

This retailer has an ordering page which makes some sense of the plethora of varieties, but the retailer is not recommended by Aqualab because of a bad web site, poor customer service communication, and the lack of likelihood of having items in stock. Anyway, this retailer (3023; wired) has better prices and a driver selector tool to help sort out all the varieties. Good luck.

Last updated 27 Jun 2011.

BuckToot

7027-D-350

LED Supply

$9.99 + shipping

Buck driver

5-28 V

1-6

71-94%

350 mA
constant current

19 mm x 10 mm diameter

Input voltage must be at least 2 V higher than output voltage. Output has short circuit protection (15 seconds) and open circuit protection. Efficiency is greater the more LEDs it's driving.

Last updated 10 Jun 2011.

CAM 3 channel

104

PCB Components

$44.00 (approx)
€31.95 (actual)

Buck driver

10-30 V

1-8

93%

1000 mA
constant current

57 mm x 31 mm

Common Anode Multichannel. Powers 3 LED channels with a common anode, up to a maximum power of 25 W per channel. Output current on each channel can be set at 350 mA, 700 mA, or 1000 mA, and dimmed separately using PWM or DC inputs. Reverse polarity protection. Maximum claimed efficiency listed here; typical efficiency for any particular configuration unknown.

4 channel version also available.

Last updated 22 Dec 2011.

CAM 4 channel

104

PCB Components

$63.00 (approx)
€45.95 (actual)

Buck driver

10-30 V

1-8

93%

1000 mA
constant current

57 mm x 31 mm

Common Anode Multichannel. Powers 4 LED channels with a common anode, up to a maximum power of 25 W per channel. Output current on each channel can be set at 350 mA, 700 mA, or 1000 mA, and dimmed separately using PWM or DC inputs. Reverse polarity protection. Maximum claimed efficiency listed here; typical efficiency for any particular configuration unknown.

3 channel version also available.

Last updated 22 Dec 2011.

CC1W

ccxw

TaskLED

$15.00 + shipping

Buck driver

4-30 V

1-4

350 mA
constant current

25 mm x 20.3 mm

Buck regulator. Constant current output at up to 16 V. Headroom 1 V.

Last updated 10 Jun 2011.

CC5W

ccxw

TaskLED

$18.00 + shipping
(sold out and/or discontinued)

Buck driver

4-30 V

1-4

1000 mA
constant current

25 mm x 20.3 mm

Buck regulator. Constant current output 700 mA or 1000 mA, at up to 16 V. Headroom 1.3 V.

Last updated 10 Jun 2011.

CCD-350

Other

$9.95 + shipping

Mains buck driver

110-120 V AC

1-4

115 V AC mains power

45-60%

350 mA
constant current

42 mm x 40 mm x 22 mm

Output voltage 3.5-18 V. Not suitable for a single red or infrared LED.

Horrendous price for international shipping.

Last updated 10 Jun 2011.

CCHIPO v1.2

cchipo

TaskLED

$45.00 + shipping
(sold out and/or discontinued)

Boost driver

4-30 V

2-13

84-92%

2000 mA
constant current

63 mm x 48 mm

Boost regulator. Vin must be less than Vout. Maximum 5 A input. User adjustable constant current output up to 2 A or 48 V (45 W max). Optional external adjustment. Open circuit protected, but if doing so, LED(s) must not be connected until output has discharged from 48 V.

Last updated 10 Jun 2011.

CP-MD004 smart breathing controller

946

Sure Electronics

$2.50 + shipping

Step-down (non-buck) driver

4.8-5.2 V

1 LED included

5 V internal computer supply

20 mA

45 mm x 27 mm

DIP switch to control speed. Output current is estimate only.

Last updated 10 Jun 2011.

Cree MC-E / Seoul P7 driver 5 mode
(101119)

20329

DealExtreme

$5.62 (formerly $5.70)

Buck driver

7.4-8.4 V

2x Li-ion

85%

2000 mA

25 mm - two boards in double layer

Buck regulator using PWM for modes. Double layer board; the 1 mode version plus a mode controller. 5 modes, the order of which multiple users report to be; medium, low, high, strobe, SOS. One user has reported the "strobe" mode is actually a 50% duty cycle flash. No mode memory: "Every switch on, no matter how long or short advances the mode, and if it's left off for more than a minute or two it goes back to full-bright." Claimed constant current output at 2.8A but many buyers have reported the output is not well regulated and/or much lower than the rated output current - around 2.0 A and as low as 1.9 A. Buyer beware!

Last updated 25 Nov 2011.

Cree MC-E / Seoul P7 driver, 1 mode

20330

DealExtreme

$4.70

Buck driver

4-8.4 V

6x NiMH,
2x Li-ion

85%

2400 mA

25 mm

4th version February 2011: Reported to be equipped with SS34 Schottky diode and provide 2400 mA output. Possibly QX5241A driver chip.

3rd version September 2009: Said by techjunkie to be "a stinker".

2nd version March 2009: Buck regulator, driver chip number obscured/removed. Claimed constant current output at 2.8A but no one has got more than 2260 mA. Techjunkie says it's now well regulated. The Schottky diode used has a current rating of just 2 A.

1st version: Users reported the output current of the older version was not well regulated, and several others reported much lower than the rated output current (as low as 1950 mA was reported). From work techjunkie did here it seemed the driver may have been mainly a voltage regulator not a current regulator. This would allow it to work in parallel but not significantly increase output current. The actual output current would depend on LED Vf, so it's hard to be sure what you'll get. He also said the diameter is actually 26 mm.

Last updated 27 Oct 2011.

Cree MC-E, Seoul P7 driver

S006130

KaiDomain

$10.11 each, also available in 5 pack
(sold out and/or discontinued)

Buck driver

5.5-15 V DC; also works with AC

2800 mA

19 mm

Three modes at high, medium (30%), low (10%). Its only reviewer says it needs heatsinking or it will burn out. Buyer beware.

Formerly product ID 5595. Also available in a 5 pack, S006371 (formerly product ID 6282).

Last updated 21 Nov 2011.

D2DIM

d2dim

TaskLED

$20.00 + shipping
(sold out and/or discontinued)

User interface board

2.7-24 V
(v1.0 max 16 V
v1.1 max 24 V)

N/A

3400 mA

22 mm

PWM dimming only. This board does no current limiting but can be used in conjunction with other drivers that do. PWM frequency ~800 Hz. Maximum throughput current 3.4-4.5 A depending on temperature.

Last updated 21 Jun 2011.

D2Flex v2

d2flex

TaskLED

$21.00 + shipping

User interface board

2.7-24 V

N/A

6000 mA

21 mm

PWM dimming only. This board does no current limiting but can be used in conjunction with other drivers that do. The number of modes varies and can be altered. This board does no current limiting but can be used in conjunction with other drivers that do. PWM frequency ~800 Hz. Maximum throughput current 6 A (version 1 was 3.4-4.5 A depending on temperature). Reverse polarity and output open circuit protected.

Last updated 21 Jun 2011.

DC-009

109948

DealExtreme

$3.10

Unspecified driver type

2.8-4.2 V

1x Li-ion

1300 mA

17 mm

5 modes with memory; high, medium (30%), low (3%), strobe (9 Hz), SOS. Unknown regulation method - possibly just PMW without current limiting.

Last updated 13 Dec 2011.

Dimming Controller for 12V LED Lights

73618

DealExtreme

$7.80

User interface board

12-12 V

1-3

12 V DC

8 A

89 mm x 60 mm x 39 mm

Presumed to provide PWM dimming for 12 V DC LED lamps, thus does no current limiting itself. Maximum 96 W power handling.

Last updated 27 Aug 2011.

DL-00193

107676

DealExtreme

$3.70

Buck driver

3-9 V

2x Li-ion

1000 mA

17 mm

5 modes; high, medium (50%), low (10%), strobe (8 Hz), SOS.

Last updated 27 Nov 2011.

DL-002

106796

DealExtreme

$4.20

Unspecified driver type

2.8-4.2 V

1x Li-ion

2000 mA

17 mm

5 modes; medium (30%), low (10%), high, strobe (8 Hz), SOS. Unknown regulation method - possibly just PMW without current limiting. The 8 mode version of this (DL-003) has a claimed current range of 2-2.8 A.

Last updated 5 Dec 2011.

DL-003

106799

DealExtreme

$3.70

Unspecified driver type

2.8-4.2 V

2800 mA

17 mm

8 modes, and a strange mix they are; low (5%), high, fast strobe (16 Hz), very low (1%), medium strobe (3.3Hz), slow strobe (1 Hz), SOS, police strobe (16 Hz, 1 second off). The stated current range of 2.0-2.8 A implies it might just provide PWM modes.

Last updated 14 Dec 2011.

DL-004

106303

DealExtreme

$4.90

Buck driver

5-8.4 V

2x Li-ion

2500 mA

26 mm x 13 mm high

4 modes; high, medium (50%), low (25%), SOS.

Last updated 21 Nov 2011.

DL-005

106805

DealExtreme

$4.00

Buck driver

5-17 V

2000 mA

17 mm x 12mm high, two boards in double layer

5 modes, no memory; high, low (10%), medium (30%), strobe (8 Hz), SOS. Note that the diameter stated in the dimensions used to be 20 mm; the title and description used to be and still are 17 mm. Input voltage range of 5-17 V is contradicted by the example battery of 1 x 18650.

Last updated 2 Jan 2012.

DL-006

106487

DealExtreme

$3.70

Buck driver

3.6-9 V

1000 mA

17 mm x 6 mm high - two boards in double layer

Five modes, weird mode order; medium (30%), low (8%), high, strobe (8 Hz), SOS.

Last updated 20 Nov 2011.

DL-007

106484

DealExtreme

$3.50

Boost driver

0.8-4.2 V

800 mA

17 mm

Three mode; high, medium (30%), strobe (9 Hz). Reverse polarity protected. Specs mention "(1 x 123A or 1 x 16340 battery)" but a 16340 li-ion cell would likely cause this boost driver to be in direct drive.

Last updated 22 Nov 2011.

DL-008

106797

DealExtreme

$4.00

Boost driver

0.9-4.2 V

1x AA,
1x 14500 Li-ion

420 mA

17 mm

5 modes with memory; high, medium (30%), low (3%), strobe (9 Hz), SOS. Claims to be suitable for 1x 14500 cell, but doesn't say if it's in direct drive with that input, relying on the voltage drop of a small Li-ion cell.

Last updated 21 Nov 2011.

dsche low current driver

Other

$16.00 (approx)
500 roubles (actual) + shipping

Linear regulator

2.8-5.5 V

1x Li-ion

120 mA
constant current

14 mm

Linear regulator. Two modes, low (20 mA), medium (120 mA). Power interruption of less than 0.5 seconds is ignored. Power interrupted for 0.75 seconds or more changes modes. No power for 2 minutes or more resets to low mode.

Last updated 1 Oct 2011.

DW Powerbuck 5A

CPF member

$47.50 (approx)
€35 (actual) + shipping

Buck driver

6-20 V

1-4

89-98%

5000 mA
constant current

26 mm x 13 mm high

Available direct from a CPF member. Input cut-off voltage is 4.5 V but output current will decrease under 6 V input.

Last updated 10 Jun 2011.

DW Powerbuck 9A

CPF member

$47.50 (approx)
€35 (actual) + shipping

Buck driver

6-20 V

1-4

89-98%

9 A
constant current

26 mm x 13 mm high

Available direct from a CPF member. Input cut-off voltage is 4.5 V but output current will decrease under 6 V input.

Last updated 10 Jun 2011.

DW Powerbuck Adjustable

CPF member

$54.00 (approx; actual €41) + shipping

Buck driver

6-22 V

1-4

89-98%

9 A
constant current

23 mm x 13 mm high

Available direct from a CPF member. Input cut-off voltage is 4.5 V but output current will decrease under 6 V input. Output current adjustable with potentiometer, in the range 0.5-9.0 A (or possibly 0.5-5.0 A). Input voltage must be at least 2V above output voltage.

Last updated 14 Dec 2011.

E27 1-3*1W driver

66960

DealExtreme

$5.90 for 2

Mains buck driver

GU10 and/or E27 driver

95-265 V AC

1-3

115 V or 230 V AC mains power

320 mA

26 mm x 15 mm x 15 mm

Output current is a guess. Claimed to work with 1-3 LEDs but claimed output voltage of 9-12 V does not allow for 1 or 2 LED operation.

Last updated 8 Aug 2011.

E27 10W driver

66961

DealExtreme

$3.90

Mains buck driver

GU10 and/or E27 driver

95-265 V AC

115 V or 230 V AC mains power

300 mA

36 mm x 15 mm x 15 mm

Output voltage 32-36 V.

Last updated 8 Aug 2011.

ET27, 3x1W

S009688

KaiDomain

$3.39 for 2
(up from $3.30)

Mains buck driver

- V AC
(Unknown mains voltage)

350 mA

30 mm x 23 mm x 13 mm

Incomplete and/or stupid specifications given. The presence of a transformer implies a mains driver but NO specs are given (except "350mAh" instead of mA in the title). How do they expect to sell them?

Formerly product ID 10939.

Last updated 21 Nov 2011.

ET27, 5x1W

S009689

KaiDomain

$4.75 for 2
(up from $4.63)

Mains buck driver

- V AC
(Unknown mains voltage)

350 mA

30 mm x 28 mm x 17 mm

Last updated 21 Nov 2011.

Fatman

fatman

TaskLED

$22.00 + shipping
(sold out and/or discontinued)

Boost driver

2.7-12 V

1-4

80-96%

1000 mA
constant current

20 mm

Boost regulator. Vin must be less than Vout. User adjustable constant current at 3-16 V, up to 1000 mA. Optional external adjustment. Must always have a load connected.

Last updated 10 Jun 2011.

FLuPIC v2.2

flupic

CPF member

$40.00
(sold out and/or discontinued)

Unspecified driver type

0-0 V

N/A

There's a user guide for the many modes here but not actual specifications, and its maker on CPF doesn't link to its specs (or the latest firmware version) in his tagline. Go figure.

Last updated 23 Oct 2011.

GCF315D-1509LD, 12W mains driver

82008

DealExtreme

$61.30

Mains buck driver

100-240 V AC

120 LEDs included

115 V or 230 V AC mains power

900 mA
constant current

Maximum output voltage 22 V.

120 low power white LEDs included (in an aluminium downlight).

Last updated 17 Jul 2011.

961

Sandwich Shoppe

$18.00 - $20 + shipping

Boost driver and buck driver

1.8-5.4 V

85-93%

1000 mA
constant current

14 mm

Buck/boost regulator. Constant current output, board available as a "blank" (add one or two SMT set resistors), or preset to 500 mA, 750 mA, or 1000 mA. Maximum output voltage 5.4 V. Must always have a load connected.

Last updated 10 Jun 2011.

GDuP

1153

Sandwich Shoppe

$48.00 + shipping

Boost driver and buck driver

1.8-5.4 V

2-3x alkaline,
1x Li-ion

700 mA
constant current

14 mm

Three modes; default set 10 mA, 180 mA, 700 mA. Levels can be changed for an extra charge. Mode memory.

Last updated 10 Jun 2011.

GDuP high output

1291

Sandwich Shoppe

$49.80 + shipping

Boost driver and buck driver

1.8-5.4 V

2-3x alkaline,
1x Li-ion

1200 mA
constant current

14 mm

Three modes; default set 20 mA, 180 mA, 1.2 A. Levels can be changed for an extra charge. Mode memory.

Last updated 10 Jun 2011.

GU10 3W 220V mains driver

47361

DealExtreme

$2.70

Mains buck driver

GU10 and/or E27 driver

220-240 V AC

1-3

230 V AC mains power

300 mA

22 mm x 15 mm x 13 mm

Transformer with buck regulator. Called a GU10 driver but does not itself have the bayonet pins of the GU10 connector. Incomplete specifications given. Presumably it can drive 3 LEDs because it's called a "3W" driver.

Last updated 4 Jul 2011.

GU10 mains driver, 1x 1 W

13554

DealExtreme

$3.09 (down from $3.32)

Mains buck driver

GU10 and/or E27 driver

85-265 V AC

115 V or 230 V AC mains power

25%

350 mA
constant current

22 mm x 15 mm x 14 mm

Transformer with buck regulator. Constant current out 320-350 mA. Reported to not be very efficient (not normally a major problem for mains power). These are called GU10 drivers but do not themselves have the bayonet pins of the GU10 connector. Efficiency figure from a review.

Last updated 4 Jul 2011.

GU10 mains driver, 1x 3 W

13552

DealExtreme

$2.91 (down from $3.10, down from $3.32)

Mains buck driver

GU10 and/or E27 driver

85-265 V AC

115 V or 230 V AC mains power

650 mA
constant current

23 mm x 15 mm x 15 mm

Transformer with buck regulator. Claimed constant current out 650-700 mA, actual might be as low as 620 mA. Reported to not be very efficient (not normally a major problem for mains power). These are called GU10 drivers but do not themselves have the bayonet pins of the GU10 connector.

Last updated 4 Jul 2011.

GU10 mains driver, 3x1W

13556

DealExtreme

$3.32

Mains buck driver

GU10 and/or E27 driver

85-265 V AC

115 V or 230 V AC mains power

43-75%

300 mA

23 mm x 17 mm x 17 mm

Transformer with buck regulator. Called a GU10 driver but does not itself have the bayonet pins of the GU10 connector. Output current 300 mA @ approx. 9-10 V. Efficiency figures from reviews.

Last updated 4 Jul 2011.

GU10/E27 3W mains driver

66275

DealExtreme

$3.90

Mains buck driver

GU10 and/or E27 driver

90-265 V AC

115 V or 230 V AC mains power

90%

315 mA

23 mm 17 mm x 13 mm

Output voltage 8-11 V. Actual output current 300-315 mA. Claimed at least 90% efficient. Does not include a GU10 or E27 connector.

Last updated 4 Jul 2011.

H6CC

h6cc

TaskLED

$32.00 + shipping

Buck driver

8.1-24 V

1-5

80-95%

6700 mA
constant current

31 mm x 9 mm high

Formerly called H5CC. Suitable for SST-50. Output current variable from 20 mA up to 6.7 A. Overhead is 1.0 V at 5 A output. Not suitable for connecting multiple drivers in parallel. First 20 units have a maximum input of 20 V. Information thread here.

Last updated 10 Jun 2011.

H6Flex

h6flex

TaskLED

$40.00 + shipping

Buck driver

7-21 V

1-6

90%

6600 mA
constant current

33 mm

Features uController UI, "User menu reconfigurable to 1400mA/2000mA/2800mA/3600mA/5000mA/5600mA or 6600mA at any time." Ships configured for 1.4 A output. Input voltage needs to be at least 1 V higher than output voltage (at 2.8 A).

Last updated 10 Jun 2011.

HD 1x1W

51231

DealExtreme

$12.70

Mains buck driver

85-265 V AC

1 LED included

115 V or 230 V AC mains power

300 mA

Output 6-12V.

1 blue LED included (in a fancy aluminium holder).

Last updated 10 Jun 2011.

HD 3x1W

54870

DealExtreme

$13.20

Mains buck driver

85-265 V AC

3 LEDs included

115 V or 230 V AC mains power

300 mA

3 white LED included (in a fancy aluminium downlight).

Last updated 10 Jun 2011.

HDX 12VAC

48106

DealExtreme

$9.00

Buck driver

12-12 V DC; also works with AC

1 LED included

330 mA

Product is labelled "AC12" and hence DX description says it accepts 12 V. Output current stated on driver is likely an error and should probably be 330 mA. Output 2-5 V.

1 blue LED included (in a fancy aluminium holder).

Last updated 10 Jun 2011.

HDX-0103B

66016

DealExtreme

$11.10

Mains buck driver

85-245 V AC

3 LEDs included

115 V or 230 V AC mains power

330 mA

Output current 310-350 mA, output 6-12 V (although the driver label has the box dotted for 2-5 V output).

3 white LEDs included (in a fancy golden coloured aluminium downlight).

Last updated 22 Jun 2011.

HDX-01A

66186

DealExtreme

$6.20

Mains buck driver

85-245 V AC

1 LED included

115 V or 230 V AC mains power

300 mA

Output current stated on driver (660 mA) is an error. Output 2-5 V.

1 white LED included (in an aluminium downlight).

Last updated 27 Jun 2011.

HDX-01A 220V

46680

DealExtreme

$9.70

Mains buck driver

220-240 V AC

1 LED included

230 V AC mains power

330 mA

Product is labelled "220V". Output current stated on driver is likely an error and should probably be 330 mA. Output 2-5 V @ claimed 310-350 mA.

1 warm white LED included (in a fancy aluminium holder).

Last updated 10 Jun 2011.

HDX-I0812A(4-7) red

49750

DealExtreme

$22.00

Mains buck driver

100-240 V AC

4-7

6 LEDs included

115 V or 230 V AC mains power

330 mA

Output 12-25 V.

6 warm white LEDs included (in an aluminium downlight).

Also available with a 7 LED downlight.

Last updated 23 Oct 2011.

HDX-I0812A(4-7) silver

48083

DealExtreme

$22.60

Mains buck driver

100-240 V AC

4-7

5 LEDs included

115 V or 230 V AC mains power

330 mA

Output 12-25 V. Plain aluminium case.

5 LEDs included (in a fancy aluminium holder) which are reported to be red, green, blue, cool white and warm white; it seems a warm white LED is pictured.

Last updated 10 Jun 2011.

HDX-I0812A(8-12) red

70006

DealExtreme

$28.80

Mains buck driver

100-240 V AC

8-12

12 LEDs included

115 V or 230 V AC mains power

330 mA

Output 24-45 V.

12 warm white LEDs included (in an aluminium downlight).

Last updated 10 Jun 2011.

Hi-Max HM-ST50D

830

LCK-LED

$12.00 + shipping

Buck driver

5-8.4 V

2x Li-ion

4200 mA

20 mm x 17 mm high - two boards in double layer

Five modes - medium (30%), low (10%), high (100%), 9 Hz strobe, SOS.

Last updated 10 Jun 2011.

hipCC

hipcc

TaskLED

$24.00 + shipping

Buck driver

4.5-25 V

1-5

77-97%

2800 mA
constant current

28 mm

Limited supply. Buck regulator. Constant current output 2.8 A. Headroom 0.5 V. Thermal protection, polarity protection. Single mode but can be driven using a separate PWM driver.

Last updated 10 Jun 2011.

hipFlex v1.1A

hipflex

TaskLED

$35.00 + shipping

Buck driver

4.5-24 V

1-6

73-95%

2800 mA
constant current

36 mm

Buck regulator, can drive up to 22 V of series connected LEDs. Constant current output user reconfigurable at any time to 1.0/1.4/2.0/2.4/2.8 A. Headroom 0.5 V @ 2.8 A. Thermal protection, polarity protection.

Last updated 10 Jun 2011.

HL10W, 10W mains driver

81475

DealExtreme

$7.40

Mains buck driver

85-265 V AC

2-4

115 V or 230 V AC mains power

72%

900 mA

63 mm x 28 mm x 20 mm

Output voltage 5-12 V. Waterproof, IP66 rating. Possibly has short circuit protection.

24 Jan 2012.

HLY-JV0206A

48911

DealExtreme

$29.20

Mains buck driver

100-240 V AC

1-6

6 LEDs included

115 V or 230 V AC mains power

320 mA
constant current

Output 4-20 V.

6 white LEDs included (in a fancy acrylic downlight).

Last updated 10 Jun 2011.

Hyperboost v1.0

hboost

TaskLED

$40.00 + shipping

Boost driver

8-50 V

3-23

88-92%

1400 mA
constant current

36 mm

Boost driver, input voltage must be less than output voltage. Maximum output 80 V. Adjustable output current limit. Input current less than 5 A for optimal performance. Has open circuit and reverse polarity protection. (Note that if turned on while open circuit, output will rise to 80 V - shock hazard.)

Previous version (pre Feb 2010) maximum 1.3 A output.

Last updated 10 Jun 2011.

Hyperbuck v1.0

hbuck

TaskLED

$40.00 + shipping

Buck driver

8-80 V

1-15

1500 mA

36 mm x 31 mm

Maximum output voltage 50 V. Output open circuit and short circuit protected; reverse polarity protected. Supports external potentiometer for dimming. Vin must be at least 2 V greater than Vf.

Last updated 10 Jun 2011.

IS1006
(SST-90 linear driver)

IS1006

CPF member

$25.00 + shipping

Linear regulator

3-12 V

1-4

4x NiMH "is probably the best configuration available"

10 A
constant current

26 mm

The specs for this driver listed in this table may not be correct, as incomplete specs are listed in the sales thread and the specs thread isn't linked from it. (It might be this one but it has conflicting specs from the few that are actually listed in the sales thread.) Different versions are available, with high mode 5 A, 8 A or 10 A, and low mode from 1.2 A up. Switching between modes required a toggle switch or potentiometer (not included). Driver draws 0.5 mA when off.

Last updated 10 Jun 2011.

JK 360150, 50W 1.5A waterproof mains driver

64664

Other

$28.36

Mains buck driver

100-240 V AC

9-12

115 V or 230 V AC mains power

1500 mA

Waterproof, IP67 rating. Output voltage 30-36 V.

Last updated 10 Jun 2011.

JK 360300, 100W 3A waterproof mains driver

64272

Other

$70.16

Mains buck driver

100-240 V AC

10-12

115 V or 230 V AC mains power

3000 mA

Waterproof, IP67 rating. Output voltage 30 V in claimed specs, 36 V on driver case label.

Last updated 10 Jun 2011.

JK 360360100, 30W 1A waterproof mains driver

64663

Other

$20.46

Mains buck driver

100-240 V AC

9-12

115 V or 230 V AC mains power

1000 mA

Waterproof, IP67 rating. Output voltage 30-36 V.

Last updated 10 Jun 2011.

JK360360100, waterproof

48280

DealExtreme

$17.10

Mains buck driver

100-240 V AC

9-12

115 V or 230 V AC mains power

1000 mA
constant current

Waterproof, IP67 rating. Output 30-36 V.

Last updated 7 Jul 2011.

Joule Thief

joule

Other

$0.00 Make your own from scrap - fun!

Boost driver

0.3-1.5 V

Use with single alkaline only, not NiMH

30-75%

depends on the components you find

For driving a single 5mm LED from an alkaline AA or AAA. Do not use with NiMH - the Joule Thief will suck it dry and leave it gasping or permanently dead. There's a handy instruction video on YouTube.

Some changes to the basic circuit can increase efficiency and stablise output. (Love the ASCII diagrams - they're cool!)

FWIW an open circuit Joule Thief can output over 50 volts, so they can be used for all sorts of things, like charging other batteries.

Last updated 23 Oct 2011.

JR (13-20)x1W, waterproof mains driver

64007

Other

$12.43

Mains buck driver

85-265 V AC

13-20

115 V or 230 V AC mains power

320 mA

Waterproof, !P66 rating. Output voltage 35-65 V.

Last updated 10 Jun 2011.

JR (21-30)x1W, waterproof mains driver

64276

Other

$14.78

Mains buck driver

85-265 V AC

21-30

115 V or 230 V AC mains power

320 mA

Waterproof, IP66 rating.

Last updated 10 Jun 2011.

JR(13-20)x1W, waterproof 20 W mains driver

42744

DealExtreme

$11.10

Mains buck driver

85-265 V AC

13-20

115 V or 230 V AC mains

320 mA

140 mm x 30 mm x 18 mm

Output voltage 35-65 V. Waterproof, IP66 rating.

Last updated 7 Jul 2011.

JR(2-3)x1W waterproof mains driver

44240

DealExtreme

$4.20

Mains buck driver

85-265 V AC

2-3

115 V or 230 V AC mains

320 mA
constant current

51 mm x 25 mm x 20 mm

Waterproof, IP66 rating.

Last updated 6 Jul 2011.

JR(2-3)x3W mains driver

42830

DealExtreme

$5.20

Mains buck driver

85-265 V AC

2-3

115 V or 230 V AC mains

680 mA

37 mm x 30 mm x 24 mm

Output voltage 6-11 V. If maximum output is 11 V at 680 mA it's actually about 7.5 W.

Last updated 23 Nov 2011.

JR(21-30)x1W, waterproof mains driver

42905

DealExtreme

$12.90

Mains buck driver

85-265 V AC

21-30

115 V or 230 V AC mains power

320 mA

160 mm x 30 mm x 20 mm

Output voltage 60-98 V. Waterproof, IP66 rating.

Last updated 6 Jul 2011.

JR(4-6)x1W mains driver

44008

DealExtreme

$5.20

Mains buck driver

85-265 V AC

4-6

115 V or 230 V AC mains

330 mA

38 mm x 30 mm x 24 mm

Output voltage 12-21 V. Caution: Driver possibly not waterproof as claimed.

Last updated 10 Jun 2011.

JR(7-9)x1W mains driver

44415

DealExtreme

$5.90

Mains buck driver

85-265 V AC

7-9

115 V or 230 V AC mains

330 mA
constant current

38 mm x 30 mm x 23 mm

Output voltage 21-32 V. Caution: Driver possibly not waterproof as claimed.

Last updated 10 Jun 2011.

JR(9-12)x3W, waterproof mains driver

42906

DealExtreme

$13.44 (formerly $13.70)

Mains buck driver

85-265 V AC

9-12

115 V or 230 V AC mains power

670 mA

170 mm x 30 mm x 20 mm

Output voltage 28-45 V. Waterproof, IP66 rating.

Last updated 6 Jul 2011.

JR-22-45/032, waterproof 12 W mains driver

42743

DealExtreme

$6.72 (formerly $7.10)

Mains buck driver

85-265 V AC

6-12

115 V or 230 V AC mains power

320 mA
constant current

78 mm x 30 mm x 20 mm

Output current claimed 320±20 mA at (apparently) 22-45 V. Claimed dust and water ingress protection rating IP66.

Last updated 10 Jun 2011.

JR-30W-LED Driver, 2.0 A mains driver

42746

DealExtreme

$10.70
(formerly 11.20)

Mains buck driver

85-265 V AC

115 V or 230 V AC mains power

81%

2000 mA

95 mm x 40 mm x 23 mm

Driver has changed; the present driver name in this table is from the waterproof case on the previous version.

Output voltage 16-18 V. Note that 2.0 A output at 18 V is 36 W, significantly greater than the 30 W claimed, so it's possible the claimed output is approximate.

Last updated 26 Nov 2011.

JR-50W, 50 W mains driver

42805

DealExtreme

$15.90

Mains buck driver

85-265 V AC

7-8

115 V or 230 V AC mains

2300 mA

90 mm x 55 mm x 34 mm

22-26 V output. Output current labelled as 2.4 A, claimed 2.3 A.

Last updated 10 Jun 2011.

JR-DC-50W

100809

DealExtreme

$13.30

Boost driver

12-24 V

8-10

12V automotive

1500 mA

70 mm x 50 mm x 20 mm

Output voltage 26-36 V. Includes driver heatsink.

Last updated 13 Oct 2011.

JR1x1W waterproof mains driver

44239

DealExtreme

$4.20

Mains buck driver

85-265 V AC

115 V or 230 V AC mains

330 mA
constant current

51 mm x 25 mm x 20 mm

Waterproof, IP66 rating.

Last updated 6 Jul 2011.

JR1x3W waterproof mains driver

47059

DealExtreme

$4.10

Mains buck driver

85-265 V AC

115 V or 230 V AC mains power

680 mA

50 mm x 25 mm x 20 mm

Waterproof, IP66 rating.

Last updated 6 Jul 2011.

KED01-350C, waterproof 1 W LED driver

42742

DealExtreme

$4.60

Mains buck driver

85-265 V AC

115 V or 230 V AC mains power

350 mA
constant current

36 mm x 26 mm x 19 mm

Maximum 4 V output.

Last updated 10 Jun 2011.

KED02-700C

S009712

KaiDomain

$4.44
(up from $4.34)

Mains buck driver

100-240 V AC

115 V or 230 V AC mains power

700 mA
constant current

58 mm x 32 mm x 21 mm

Output voltage maximum 4 V.

Formerly product ID 10963.

Last updated 21 Nov 2011.

KED02-700C

66329

DealExtreme

$3.40

Mains buck driver

100-240 V AC

115 V or 230 V AC mains power

700 mA
constant current

Output voltage maximum 4 V.

Last updated 29 Jun 2011.

KED03-350C

13080

DealExtreme

$32.16

Mains buck driver

100-240 V AC

2-3

2 LEDs included

115 V or 230 V AC mains power

350 mA
constant current

55 mm x 27 mm x 20 mm

Maximum 12 V output.

3 white LEDs included (in a fancy aluminium holder).

Last updated 10 Jun 2011.

KED03-350C mains driver (KEGAO 3x 1 W)

14035

DealExtreme

$6.56

Mains buck driver

100-240 V AC

2-3

115 V or 230 V AC mains power

350 mA
constant current

55 mm x 27 mm x 20 mm

Whatever description there used to be has vanished. Enclosed in white box - claimed water and dust resistant. Presumed to be a transformer with buck regulator. Output 350 mA (title says 320 mA) constant current @ 6-12 V according to the label (not 0.5-10 V as claimed in title).

Last updated 10 Jun 2011.

Kennan (NANJG 07)

KaiDomain

$3.10
(sold out and/or discontinued)

Buck driver

5-18 V

1-3

79-91%

750 mA
constant current

17 mm

Buck regulator based on PT4105 chip. Constant current output. Off the shelf it's set to 750 mA, but this can be changed by using a different set resistor (original is soldered surface mount). Input voltage needs to be 1-3 V above output. Can output 1 A with more than 9 V in, but at an efficiency cost.

Last updated 10 Jun 2011.

Kennan 2 variants (NANJG 21)

KaiDomain

$3.43
(sold out and/or discontinued)

Buck driver

5-18 V

1-3

60%

1000 mA
constant current

20 mm

Buck regulator based on PT4105 chip. Constant current output. Off the shelf it's set to 1000 mA (even though that's out of spec for the regulator chip below 9 V in) but this can be changed by using a different set resistor (original is soldered surface mount). Input voltage needs to be 1-3 V above output, but the new components will shut the board down under 6.2V (2x Li-ion?). This thread discusses the control features of this new version. Efficiency perhaps as low as 60% thanks to running it out of spec and it also runs quite hot because of it. In summary, more versatile but not as useful.

Last updated 10 Jun 2011.

Kennan 3
(NANJG 106)

S002982

KaiDomain

$4.08
(up from $3.99)

Buck driver

4-18 V

1-3

4+ NiMH,
1+ Li-ion,
12 V car battery,
whatever

80-92%

1000 mA
constant current

17 mm

November 2011: The present Kennan may be version 4; input voltage range previously claimed to be 3.6-23 V, now 4-18 V. It's still a good driver but it's more expensive than it needs to be, so no longer recommended. Consider KD S009736 or DX sku.26110 instead.

Buck regulator based on AX2002 chip. Constant current output, off the shelf set to 1 amp. Efficiency figures from AX2002 datasheet, but "AX2002" test results I've seen that may be of this board indicates 78-87% for a single LED below 1.4 A, sagging to 65% at 2.4 A.

Note: In italianboy's review (apparently lost with the Nov 2011 KD site update) he claims that 1 amp is outside the driver chip's limits. This is not true as the AX2002 can actually cope with 2.5 amps, although it will get very hot over 2 amps, meaning without heatsinking the thermal protection will probably turn it off after just a few minutes. Also, the other components on the Kennan 3 board may not be too happy at 2+ amps; the Schottky diode is an SS14, which has a 1 A limit.

The Case 1 and Case 2 examples mentioned on KD's site mention the 750 mA that an earlier Kennan driver was set to.

Formerly product ID 1640.

Last updated 21 Nov 2011.

L-mini II

the 134

Shining Beam

$10.75 + shipping

Boost driver and buck driver

2.8-5.5 V

1x Li-ion

1000 mA
constant current

17 mm - two boards in double layer

Stupidly, this driver completely vanishes from the retailer's web site when temporarily out of stock.

SKU 1219. Three mode, low (80 mA), medium (350 mA), high (1000 mA). Built-in voltage protection, will turn off at 2.8 V. Polarity protection.

Last updated 10 Jun 2011.

L30.3

L303

Lux-RC

$26.66 + shipping

Buck driver

3.8-12 V

1 LED included

69-82%

1000 mA
constant current

18 mm

Driver board with combined LED - Seoul P4 U2 (cool white). Board has 12 V maximum on it, but spec sheet shows 18 V maximum.

Seems identical to L30.4 except for an extra hole on the L30.4.

Last updated 10 Jun 2011.

L30.4

L304

Lux-RC

$26.66 + shipping

Buck driver

3.8-18 V

1 LED included

69-82%

1000 mA
constant current

18 mm

Driver board with combined LED - Seoul P4 U2 (cool white). Board has 12 V maximum on it, but spec sheet shows 18 V maximum.

Seems identical to L30.3 except for an extra hole on the L30.4.

Last updated 10 Jun 2011.

L31.2

L312

Lux-RC

$33.09 + shipping

Buck driver

3.5-18 V

1 LED included

66-77%

1000 mA
constant current

15 mm

Driver board with combined LED Cree XP-G R5 (cool white).

Last updated 10 Jun 2011.

L31.2E

L312-E

Lux-RC

$33.09 + shipping

Buck driver

3.5-18 V

1 LED included

69-82%

1000 mA
constant current

15 mm

Driver board with combined LED Cree XP-E R3 (outdoor white) for a narrower beam than the standard L312.

Last updated 10 Jun 2011.

L31.2N

L312-N

Lux-RC

$33.09 + shipping

Buck driver

3.5-18 V

1 LED included

66-77%

1000 mA
constant current

15 mm

Driver board with combined LED Cree XP-G R4 (neutral white).

Last updated 10 Jun 2011.

L33.2

L332

Lux-RC

$46.78 + shipping

Boost driver

4.8-9.5 V

3 LEDs included

2x Li-ion

78-96%

1060 mA
constant current

20 mm

Driver board with combined LEDs - triple Cree XP-G R5 (cool white).

A new 1.55 A version is undergoing testing, as discussed here.

Last updated 23 Oct 2011.

L33.2-MC-Z

L332MC-Z-Beta

Lux-RC

$72.90 + shipping

Boost driver

5.5-9.5 V

3 LEDs included

2x Li-ion

1550 mA
constant current

20 mm

Beta version - even the name hasn't been standardised yet (MC-Z or Z-MC). Driver board with combined LEDs - triple Cree XP-G R5 (cool white).

Last updated 10 Jun 2011.

L33.2-Z

L332-Z-Beta

Lux-RC

$67.00 + shipping

Boost driver

5.5-9.5 V

3 LEDs included

2x Li-ion

1550 mA
constant current

20 mm

Beta version. Driver board with combined LEDs - triple Cree XP-G R5 (cool white).

Last updated 10 Jun 2011.

L33.2E

L332-E

Lux-RC

$46.78 + shipping

Boost driver

4.8-9.5 V

3 LEDs included

2x Li-ion

78-96%

1060 mA
constant current

20 mm

Driver board with combined LEDs - triple Cree XP-E R3 (cool white).

Last updated 10 Jun 2011.

L33.2MC

L332MC

Lux-RC

$52.90 + shipping

Boost driver

3.5-9.5 V

3 LEDs included

2x Li-ion

78-96%

1060 mA
constant current

20 mm

Driver board with combined LEDs - triple Cree XP-G R5 (cool white). Three modes; 100%, 20%, 2%. An extra momentary button (not supplied) allows access to four flashing modes and to manually set the middle mode anywhere in the range 0-50%. Below ~4.8 V in the output will drop out of regulation.

A new 1.55 A version is undergoing testing, as discussed here.

Last updated 23 Oct 2011.

L33.2MC-E

L332MC-E

Lux-RC

$52.90 + shipping

Boost driver

4.8-9.5 V

3 LEDs included

2x Li-ion

78-96%

1060 mA
constant current

20 mm

Driver board with combined LEDs - triple Cree XP-E R3 (cool white). Three modes; 100%, 20%, 2%. An extra momentary button (not supplied) allows access to four flashing modes and to manually set the middle mode anywhere in the range 0-50%.

A new 1.55 A version is undergoing testing, as discussed here.

Last updated 23 Oct 2011.

L33.2MC-N

L332MC-N

Lux-RC

$52.90 + shipping

Boost driver

3.5-9.5 V

3 LEDs included

2x Li-ion

78-96%

1060 mA
constant current

20 mm

Driver board with combined LEDs - triple Cree XP-G R4 (neutral white). Three modes; 100%, 20%, 2%. An extra momentary button (not supplied) allows access to four flashing modes and to manually set the middle mode anywhere in the range 0-50%. Below ~4.8 V in the output will drop out of regulation.

A new 1.55 A version is undergoing testing, as discussed here.

Last updated 23 Oct 2011.

L33.2MC-N-Z

L332MC-N-Z-Beta

Lux-RC

$72.90 + shipping

Boost driver

5.5-9.5 V

3 LEDs included

2x Li-ion

1550 mA
constant current

20 mm

Beta version - even the name hasn't been standardised yet (MC-N-Z or ZMC-N). Driver board with combined LEDs - triple Cree XP-G R4 (neutral white).

Last updated 10 Jun 2011.

L33.2MC-RGB

L332MC-RGB-Beta

Lux-RC

$49.70 + shipping

Boost driver

4-9 V

3 LEDs included

2x Li-ion

1000 mA
constant current

20 mm

Beta version. Driver board with combined LEDs - triple Cree XP-E (red, green and blue).

Last updated 10 Jun 2011.

L33.2N

L332-N

Lux-RC

$46.78 + shipping

Boost driver

4.8-9.5 V

3 LEDs included

2x Li-ion

78-96%

1060 mA
constant current

20 mm

Driver board with combined LEDs - triple Cree XP-G R4 (neutral white).

Last updated 10 Jun 2011.

L33.2N-Z

L332N-Z-Beta

Lux-RC

$67.00 + shipping

Boost driver

5.5-9.5 V

3 LEDs included

2x Li-ion

1550 mA
constant current

20 mm

Beta version - even the name hasn't been standardised yet (N-Z or Z-N). Driver board with combined LEDs - triple Cree XP-G R4 (neutral white).

Last updated 10 Jun 2011.

LB0724 blue

48722

DealExtreme

$21.80

Mains buck driver

85-240 V AC

4-7

5 LEDs included

115 V or 230 V AC mains power

300 mA
constant current

Output 12-24 V.

5 white LEDs included (in a downlight).

Last updated 10 Jun 2011.

LC-10407A, red case

58926

DealExtreme

$13.50
(sold out and/or discontinued)

Mains buck driver

100-240 V AC

4-7

7 LEDs included

115 V or 230 V AC mains power

330 mA

Output voltage 12-25 V.

7 warm white LEDs included (in an aluminium downlight).

Last updated 6 Jul 2011.

LC-10407A, red case

66415

DealExtreme

$17.70

Mains buck driver

100-240 V AC

4-7

6 LEDs included

115 V or 230 V AC mains power

330 mA

Output voltage 12-25 V. DX claims input voltage range 85-245 V; figures from label listed in table.

6 white LEDs included (in an aluminium downlight). Also available with 5 LEDs and 7 LEDs.

Last updated 18 Aug 2011.

LD-CU7021AF

11264

DealExtreme

$51.90 (formerly $55.71)

Mains buck driver

100-240 V AC

1-6

3 LEDs included

115 V or 230 V AC mains power

700 mA
constant current

Output voltage 3-21 V.

3 white LEDs included (in a fancy aluminium holder).

Last updated 21 Oct 2011.

LD-LPS-100W15A3036V

608

LCK-LED

$45.00 + shipping

Mains buck driver

170-250 V AC

8-10

230 V AC mains power

1500 mA
constant current

130 mm x 70 mm x 45 mm

Waterproof, rating IP67. Output 30-36 V. Short circuit, overload, over voltage and over temperature protection.

Last updated 10 Jun 2011.

LD-LPS-100W35A3036V

609

LCK-LED

$68.00 + shipping

Mains buck driver

170-250 V AC

8-10

230 V AC mains power

3500 mA
constant current

210 mm x 70 mm x 45 mm

Waterproof, rating IP67. Output 30-36 V. Short circuit, overload, over voltage and over temperature protection.

Last updated 10 Jun 2011.

LD10W

710

LCK-LED

$4.45 + shipping

Buck driver

12-14 V DC; also works with AC
(12 V AC maximum)

1-3

90-95%

1000 mA

43 mm x 23 mm x 9 mm

"Designed for 10W High Power LED" doesn't quite say how many LEDs it's for, so the 1-3 in this table is only a guess. The specifications for this driver are suspiciously similar to a mains driver from the same retailer. Buyer beware.

Last updated 10 Jun 2011.

LD10W-C

764

LCK-LED

$5.45 + shipping

Mains buck driver

85-256 V AC

1-3

115 V or 230 V AC mains power

90-95%

1000 mA
constant current

43 mm x 23 mm x 9 mm

"Designed for 10W High Power LED" doesn't quite say how many LEDs it's for, so the 1-3 in this table is only a guess. The specifications for this driver are suspiciously similar to a 12 V driver from the same retailer. Buyer beware.

Last updated 10 Jun 2011.

LDV9

501

LCK-LED

$9.45 + shipping

Buck driver

5.5-15 V
(preferred less than 12 V)

90-95%

2800 mA

19 mm

Three modes - low (5%), high (100%), medium (35%). Switches to low mode on over-temperature. Output claimed to be constant current and either 3.0 amps or 2.8 amps. Input variously listed at 5.5-15 V (with <12 V preferred), 5.5-13.2 V, and 4.0-12.0 V. 90-95% efficient seems to be the default claim by this retailer. The claim to provide 1+ hours of 3 A output from four Eneloop cells is clearly false for a Cree MC-E or SSC P7. With a LED Vf of 3.4 V (MC-E) that's 10.2+ Wh output from less than 8.5 Wh input (Eneloop @ 2.25 A, assumed driver 95% efficient for estimating battery voltage under load). This also raises doubt about the constant current claim. Buyer beware.

Last updated 10 Jun 2011.

LE-LL208

343

Sure Electronics

$1.99
(formerly $1.43) + shipping
(sold out and/or discontinued)

Buck driver

5-24 V
(7-15 V suggested)

1-4

73%

285 mA
constant current

24 mm x 24 mm

Driver has been removed from retailer's web site. Actual output current may vary from 240 mA to 310 mA. Possibly a clearance product; claim to have free shipping could not be verified.

Last updated 10 Jun 2011.

LE-LL209

344

Sure Electronics

$3.99
(formerly $2.89) + shipping
(sold out and/or discontinued)

Buck driver

6-15 V

1-4

78%

700 mA
constant current

24 mm x 24 mm

Driver has been removed from retailer's web site. Actual output current may vary from 650 mA to 710 mA.

Last updated 10 Jun 2011.

LE-LL310

1041

Sure Electronics

$2.99 + shipping

Buck driver

9-35 V

1-8

96%

350 mA

25 mm x 25 mm

"1 W LED Driver Based on MBI6651". Although claimed to be "constant current" the output current drops the more LEDs it's driving and rises the higher the input voltage. Claimed efficiency @ 12 V input with 3 LEDs.

Last updated 10 Jun 2011.

LE-LL311

1035

Sure Electronics

$4.99 + shipping

Buck driver

9-35 V

1-8

96%

700 mA

25 mm x 25 mm

"3 W LED Driver Based on MBI6651". Although claimed to be "constant current" the output current drops the more LEDs it's driving and rises the higher the input voltage. Claimed efficiency @ 12 V input with 3 LEDs.

Last updated 10 Jun 2011.

LE-LL312

1042

Sure Electronics

$6.99 + shipping

Buck driver

9-35 V

1-6

96%

1020 mA

25 mm x 25 mm

"5 W LED Driver Based on MBI6651". Although claimed to be "constant current" the output current drops the more LEDs it's driving and rises the higher the input voltage. Claimed efficiency @ 12 V input with 3 LEDs.

Last updated 10 Jun 2011.

LE-LL313

1125

Sure Electronics

$7.99 + shipping
(sold out and/or discontinued)

Buck driver

9-35 V

1-3

96%

1500 mA

25 mm x 25 mm

Driver has been removed from retailer's web site. Although "constant current" the output current drops the more LEDs it's driving and rises the higher the input voltage. Claimed efficiency @ 12 V input with 3 LEDs.

Last updated 10 Jun 2011.

LE-LL315

1043

Sure Electronics

$1.99 + shipping

Buck driver

9-35 V

1-7

96%

150 mA

25 mm x 25 mm

"0.5 W LED Driver Based on MBI6651". Although claimed to be "constant current" the output current drops the more LEDs it's driving and rises the higher the input voltage. Claimed efficiency @ 12 V input with 3 LEDs.

Last updated 10 Jun 2011.

LED AC DC Dimmer

863

Best Hong Kong

$6.49 + shipping

Linear regulator

5-24 V DC; also works with AC
(5-16 V AC)

1-7

700 mA

54 mm x 26 mm

Apparently a voltage-controlled driver with the output voltage set using a potentiometer; output voltage 1.5-22 V (use that potentiometer with care). There's an implication this driver should be used with a resistor in series with the LEDs. Claimed "max 700 mA, peak 2 A" is contradictory. Built-in rectifier for AC or DC operation. Unknown operation method but thought to be a linear regulator because of the presence of a large heat sink on the board.

Last updated 10 Jun 2011.

Led Senser v2

PCB Components

$44.00 (approx)
€30.95 (actual) + shipping

Boost driver

2.6-18 V

1-10

92%

1330 mA
constant current

32 mm

Input current up to 3 A. Soft start output, current adjustable with solder bridge (350 mA, 700 mA, 1000 mA) up to 35 V. External PWM input. Claimed efficiency is maximum; typical efficiency unknown.

Last updated 22 Dec 2011.

LED Senser Xtreme

107

PCB Components

$48.00 (approx)
€34.95 (actual) + shipping

Boost driver

6-30 V

3-16

97%

2050 mA
constant current

Can be modified to 3000 mA

28 mm x 16 mm high

Output current set by solder jumpers in 15 steps from 200 mA to 2050 mA. Tested up to 3 A output. Soft start function. Maximum input current 7 A. Maximum output voltage ~55 V. Maximum output power >100 W. Maximum claimed efficiency listed here; typical efficiency for any particular configuration unknown. Thermal protection. External PWM input and external shut down.

Last updated 22 Dec 2011.

LED Slave

PCB Components

$16.50 (approx)
€11.95 (actual) + shipping

Buck driver

6-30 V

1-6

95%

1000 mA

25 mm x 18 mm x 5 mm

1 V overhead. Efficiency listed is maximum; typical efficiency unknown. Reverse polarity protection, soft start.

Last updated 22 Dec 2011.

LED Slave with dimmer

PCB Components

$29.00 (approx)
€20.95 (actual) + shipping

Buck driver

6-30 V

1-6

96%

1000 mA
constant current

29 mm x 17 mm x 5 mm

1 V overhead. Dimming by PWM with an onboard RISC chip(!) or with DC input signal. Efficiency listed is maximum; typical efficiency unknown. Reverse polarity protection.

Last updated 22 Dec 2011.

Led Stripe v3 - Universal PWM dimming

PCB Components

$55.00 (approx)
€28.95 (actual) + shipping

User interface board

4-26 V

N/A

3500 mA

30 mm x 26 mm

Up to 70 W power switching. Quite a fancy PWM controller (apparently), with RS-232 control, or with potentiometer or two buttons (0-100% stepless), or with a single button (three levels 25%, 50%, 100%, long press turns off).

Last updated 22 Dec 2011.

LED-L04080W-A, brown case

81771

DealExtreme

$6.00

Mains buck driver

85-265 V AC

4-8

115 V or 230 V AC mains power

90%

320 mA

60 mm x 28 mm x 22 mm

Output voltage 12-27 V. Claimed minimum efficiency listed here. Claimed waterproof, no IP rating stated.

Last updated 6 Jul 2011.

LED-L0912W-A, brown case

81770

DealExtreme

$7.20

Mains buck driver

85-265 V AC

9-12

115 V or 230 V AC mains power

90%

320 mA

75 mm x 28 mm x 22 mm

Claimed output voltage 24-45 V, which implies 8-15 LEDs could be powered rather than the 9-12 LEDs claimed. Claimed minimum efficiency listed here. Claimed waterproof, no IP rating stated.

Last updated 6 Jul 2011.

LED-L0916W-A, brown case

81768

DealExtreme

$7.60

Mains buck driver

85-265 V AC

9-16

115 V or 230 V AC mains power

90%

320 mA

75 mm x 28 mm x 22 mm

Output voltage 25-62 V, which implies 8-20 LEDs could be powered rather than the 9-16 LEDs claimed. Claimed minimum efficiency listed here. Claimed waterproof, no IP rating stated.

Last updated 6 Jul 2011.

LEDUPS 1x1W mains driver

70012

DealExtreme

$6.90

Mains buck driver

85-245 V AC

1 LED included

115 V or 230 V AC mains power

330 mA

1 white LED included (in a fancy aluminium holder).

Last updated 10 Jun 2011.

Light Flashing Controller

104083

DealExtreme

$13.30

User interface board

8-16 V

N/A

12 V automotive

12.5 A

59 mm x 59 mm x 52 mm

Provides variable speed flashing. Maximum power handling 100 W. Claimed waterproof, shockproof.

Last updated 4 Nov 2011.

Lightech 10 W (350 mA)

LT-901010350pu

LED Supply

$26.99 + shipping

Mains buck driver

100-265 V AC

1-8

115 V or 230 V AC mains power

80%

350 mA
constant current

86 mm x 35 mm x 27 mm (ali case); 100 mm x 40 mm x 28 mm (plastic case)

Output voltage 2.3-28 V. "Electronic internal resettable short circuit protection. Thermal protection and overload regulation." "Waterproof potting."

Last updated 10 Jun 2011.

Lightech 18 W (700 mA)

LT-901018700p

LED Supply

$34.99 + shipping

Mains buck driver

85-277 V AC

3-7

115 V or 230 V AC mains power

80%

700 mA
constant current

133 mm x 40 mm x 31 mm

Output voltage 10-24 V. "Electronic internal resettable short circuit protection. Thermal protection and overload regulation." "Waterproof potting".

Last updated 10 Jun 2011.

Lightech 36 W (700 mA)

LT-901036700pu

LED Supply

$63.99 + shipping

Mains buck driver

100-265 V AC

4-17

115 V or 230 V AC mains power

82%

700 mA

133 mm x 40 mm x 31 mm

Output current 650-750 mA, output voltage 12-58 V. "Electronic internal resettable short circuit protection. Thermal protection and overload regulation." "Waterproof potting".

Last updated 10 Jun 2011.

Lightech 4 W (350 mA)

LT-901004350u

LED Supply

$14.99 + shipping

Mains buck driver

100-240 V AC

1-5

115 V or 230 V AC mains power

350 mA
constant current

45 mm x 45 mm x 25 mm

Output voltage 2-14 V. "Electronic internal resettable short circuit protection. Thermal protection and overload regulation." IP67 dust/water resistance.

Last updated 10 Jun 2011.

LS 1 x 1 W

55292

DealExtreme

$7.20

Mains buck driver

86-265 V AC

1 LED included

115 V or 230 V AC mains power

300 mA

Output current ±5%.

1 white LED included (in a fancy aluminium holder).

Last updated 10 Jun 2011.

LS 1 x 3 W

56239

DealExtreme

$10.20

Mains buck driver

86-265 V AC

1 LED included

115 V or 230 V AC mains power

700 mA

Claimed 3W output but driver label says 300 mA ±5%. Buyer beware.

1 white LED included (in a fancy aluminium downlight).

Last updated 10 Jun 2011.

LS 3 x 1 W

55290

DealExtreme

$13.60

Mains buck driver

86-265 V AC

1 LED included

115 V or 230 V AC mains power

300 mA

Output current ±5%.

3 white LEDs included (in a fancy aluminium holder).

Last updated 10 Jun 2011.

LS 4-7x1 W

56219

DealExtreme

$19.90

Mains buck driver

100-240 V AC

4-7

5 LEDs included

115 V or 230 V AC mains power

320 mA

5 white LEDs included (in a fancy acrylic downlight).

Last updated 10 Jun 2011.

LS1*1W37

55295

DealExtreme

$9.00

Mains buck driver

85-265 V AC

1 LED included

115 V or 230 V AC mains power

300 mA

May be a poorly labelled version of LS 1 x 1 W.

1 white LED included (in a fancy aluminium holder).

Last updated 10 Jun 2011.

LT-3090-350, 3 Channel Power Repeater

690

LCK-LED

$30.00 + shipping

Buck driver

12-48 V

3-36

350 mA
constant current

121 mm x 39 mm x 39 mm

1-12 LEDs on each of three 350 mA channels. Conflicting specifications, 48 V max input in title, but 24 V max input in description. Manual also says 48 V. Can be used with RGB controller.

Last updated 23 Oct 2011.

LT-3090-700, 3 Ch Power Repeater

691

LCK-LED

$35.00 + shipping

Buck driver

12-48 V

3-36

700 mA
constant current

121 mm x 39 mm x 39 mm

1-12 LEDs on each of three 700 mA channels. Manual. Can be used with RGB controller.

Last updated 23 Oct 2011.

Ludde (USB car supply)

688

DealExtreme

$2.86 (up from $2.58, up from $2.53)

Buck driver

10-14.5 V
(approx)

1 LED included

12 V car battery

1000 mA

100 mm long

Buck regulator, not specifically a LED driver but is an inexpensive way to get a low voltage LED driver working with 12 V. Designed to plug into a car lighter socket to provide a USB socket. Constant voltage output 5.5 V (not actually within USB spec, which is maximum 5.25 V). Can do somewhere around 700-1000 mA before dropping out of regulation. Cute little red LED to show it's working.

Tip: Does not charge iPods but there is a work-around using a couple of resistors to apply a mid-voltage to the two data pins.

Last updated 10 Jun 2011.

LY-220V RGB, 10W

100921

DealExtreme

$12.50

Mains buck driver

110-240 V AC

115 V or 230 V AC mains power

350 mA

80 mm x 39 mm x 23 mm

Output voltage red 7.0-7.5 V, blue and green 9-11 V. Designed to be used to power 3 series LEDs in each of red, green and blue. Comes with remote control to adjust colours and modes.

Last updated 1 Oct 2011.

LY-220V RGB, 30W

101148

DealExtreme

$18.50

Mains buck driver

110-240 V AC

115 V or 230 V AC mains power

350 mA

77 mm x 50 mm x 28 mm

Output voltage estimated to be red 23-25 V, blue and green 30-36 V. Designed to be used to power 10 series LEDs in each of red, green and blue. Comes with remote control to adjust colours and modes.

Last updated 2 Oct 2011.

Madmax Lite

327

Sandwich Shoppe

$8.00 + shipping

Boost driver

0.8-4.5 V

76-88%

200 mA
constant current

14 mm

Boost regulator. Unknown output regulation. Maximum power output ~0.75 W.

Last updated 10 Jun 2011.

Madmax Plus

181

Sandwich Shoppe

$8.00 + shipping

Boost driver

0.8-5 V

76-88%

700 mA
constant current

14 mm

Boost regulator. Unknown output regulation. Maximum power output ~1.5 W (Plus).

Last updated 10 Jun 2011.

MagTech L03U-350 3 Watt Mains Driver

350

LED Supply

$13.99 + shipping

Mains buck driver

95-250 V AC

1-4

115 V or 230 V AC mains power

350 mA
constant current

40 mm x 40 mm x 22 mm

Alternative versions mentioned on the datasheet are for outputs of either 700 or 1,000 mA, single LED.

Last updated 10 Jun 2011.

MagTech LA1012-24 12 Watt Mains Driver

LA1012

LED Supply

$24.99 + shipping

Mains buck driver

100-240 V AC

1-8

115 V or 230 V AC mains power

500 mA
constant current

85 mm x 35 mm x 23 mm

Maximum output voltage 24 V (12 W). IP66 dust/water resistance. The datasheet is poked.

Last updated 10 Jun 2011.

MagTech LP1025-24 25 Watt Mains Driver

LP1025

LED Supply

$39.99 + shipping

Mains buck driver

100-277 V AC

4-8

115 V or 230 V AC mains power

1040 mA
constant current

80 mm x 62 mm x 25 mm

Output voltage 12-24 V. IP54 or IP66 dust/water resistance (apparently for indoor and outdoor versions, although there's no indication of how they are distinguished when ordering). Alternative versions mentioned on the datasheet have outputs of 700 mA (18-36 V) or 2,080 mA (8-12 V).

Last updated 10 Jun 2011.

MagTech LP1090-24-170 96 Watt Mains Driver

LP1090

LED Supply

$99.99 + shipping

Mains buck driver

90-264 V AC

4-8

115 V or 230 V AC mains power

4000 mA
constant current

170 mm x 64 mm x 38 mm

Output voltage 12-24 V. IP64 dust/water resistance.

Last updated 10 Jun 2011.

Mains Power Supply for 1-3x 1 W LEDs

LT-1087

Led-Tech

$11.00 (approx)
€7.90 (actual) + shipping

Mains buck driver

100-240 V AC

1-3

115 V or 230 V AC mains power

350 mA
constant current

36 mm x 26 mm x 22 mm

Presumably a transformer and buck driver. Output constant current at 0.5-10 V DC. Overload protection, short circuit protection. IP65 housing.

Last updated 10 Jun 2011.

Mains Power Supply for 10-18x 1 W LEDs

LT-1280

Led-Tech

$18.00 (approx)
€12.90 (actual) + shipping

Mains buck driver

100-240 V AC

10-18

115 V or 230 V AC mains power

350 mA
constant current

127 mm x 40 mm x 23 mm

Presumably a transformer and buck driver. Output constant current at 30-72 V DC. Overload protection, short circuit protection.

Last updated 10 Jun 2011.

Mains Power Supply for 1x 3 W LEDs

LT-1088

Led-Tech

$11.00 (approx)
€7.90 (actual) + shipping

Mains buck driver

100-240 V AC

115 V or 230 V AC mains power

700 mA
constant current

36 mm x 26 mm x 22 mm

Presumably a transformer and buck driver. Output constant current at 0.5-4 V DC. Overload protection, short circuit protection. IP65 housing.

Last updated 10 Jun 2011.

Mains Power Supply for 3-4x 3 W LEDs

LT-1281

Led-Tech

$14.00 (approx)
€9.90 (actual) + shipping

Mains buck driver

100-240 V AC

3-4

115 V or 230 V AC mains power

700 mA
constant current

110 mm x 40 mm x 23 mm

Presumably a transformer and buck driver. Output constant current at 9-16 V DC. Overload protection, short circuit protection.

Last updated 10 Jun 2011.

Mains Power Supply for 5-8x 3 W LEDs

LT-1282

Led-Tech

$18.00 (approx)
€12.90 (actual) + shipping

Mains buck driver

100-240 V AC

5-8

115 V or 230 V AC mains power

700 mA
constant current

36 mm x 26 mm x 22 mm

Presumably a transformer and buck driver. Output constant current at 15-36 V DC. Overload protection, short circuit protection.

Last updated 10 Jun 2011.

Mains Power Supply for 6-10x 1 W LEDs

LT-1279

Led-Tech

$14.00 (approx)
€9.90 (actual) + shipping

Mains buck driver

100-240 V AC

6-10

115 V or 230 V AC mains power

350 mA
constant current

110 mm x 40 mm x 23 mm

Presumably a transformer and buck driver. Output constant current at 18-36 V DC. Overload protection, short circuit protection.

Last updated 10 Jun 2011.

MaxFlex v5A

maxflex

TaskLED

$35.00 + shipping

Boost driver

2.5-20 V

1-8

83-93%

1300 mA
constant current

23 mm

Boost regulator. Vin must be less than Vout. User configurable constant current, 350-1300 mA (increased from 1200 mA) at up to 29 V (increased from 24 V). uController UI, status LED. Open circuit protected, polarity protected.

Shark vs MaxFlex forum thread.

Last updated 10 Jun 2011.

MC-E/P7 bad driver

S005296

KaiDomain

$12.18
(up from $12.01)

Buck driver

5.5-15 V

76-83%

2800 mA

17 mm double sided board (formerly 19 mm)

It's hard taking KD's site seriously when so many random colours and sizes of text is used to describe the board, with missing graphics liberally distributed as well. (The site has since been updated.) Inconsistent specifications, with output current listed as 2.8 A and 3.0 A and input voltage listed as 5.5-15 V and 4.0-12.0 V. Three mode; low (5%), high (100%), medium (35%) - also listed as high (2.8 A), medium (1.38 A [49%]), low (0.25 A [9%]). The runtimes given don't stack up. There are two versions (with 3 and 5 modes) which look identical and either might be sent to fill an order. Buyer beware.

This driver gets a bad review here. StefanFS here says it gets really hot with 8 AA cells, while CM here calculates over 2 W of heat dissipated in high mode - toasty - while showing the claimed 90-95% efficiency is imaginary.

Appears to be the same as this driver.

Formerly product ID 1866.

Last updated 21 Nov 2011.

MC-E/P7 driver, 5 mode

S007542

KaiDomain

$8.18 each
(up from $7.99),
also available in 5 pack

Buck driver

5.5-12 V

3000 mA

19 mm

Uses PWM for 5 modes; low (10%), medium (50%), high (100%), fast strobe, SOS. If driving a Cree MC-E its four dice must be parallel connected. Also available as a 5 pack. Both product pages have photos of two different drivers. Buyer beware.

This driver gets a bad review here.

Formerly product ID 7947.

Last updated 21 Nov 2011.

Mean Well ELN-60-48D

ELN-60-48D

Other

$32.00 + shipping

Mains buck driver

90-264 V AC
(127-370 V DC)

8-14

115 V or 230 V AC mains power

88%

1300 mA

181 mm x 62 mm x 35 mm

Dimmable 0-1.3 A using 0-10 V signal. Water resistant, IP64 rating. Output 24-48 V. Datasheet.

Last updated 23 Oct 2011.

Mean Well ELN-60-48P

ELN-60-48P

Other

$30.00 + shipping

Mains buck driver

90-264 V AC
(127-370 V DC)

8-14

115 V or 230 V AC mains power

88%

1300 mA

181 mm x 62 mm x 35 mm

Dimmable 0-1.3 A using PWM input signal. Water resistant, IP64 rating.

Last updated 10 Jun 2011.

Mean Well LPC-35-700W

LPC-35-700W

Other

$16.00 + shipping

Mains buck driver

90-264 V AC
(127-370 V DC)

3-14

115 V or 230 V AC mains power

85%

700 mA
constant current

148 mm x 40 mm x 30 mm

Waterproof, IP67 rating. Short circuit, over current, and over voltage protection. Output 9-48 V. Datasheet.

Last updated 23 Oct 2011.

Mean Well LPC-60-1050

LPC-60-1050

Other

$26.00 + shipping

Mains buck driver

90-264 V AC
(127-370 V DC)

3-14

115 or 230 V AC mains power

87%

1050 mA
constant current

163 mm x 43 mm x 32 mm

Waterproof, IP67 rating. Short circuit, over voltage, and over current protection. Output 9-48 V. Claims to be suitable for XP-Gs only and that using it with XP-Es may cause them to blow. At only just over 1 A this sounds paranoid, and was probably a warning intended for the higher output drivers in the same range. The retailer was also careless with specifying the voltage range - correct range taken from datasheet.

Last updated 23 Oct 2011.

Micro 1500

PCB Components

$29.00 (approx)
€19.95 (actual) + shipping

Buck driver

5-28 V

1-10

94%

1500 mA
constant current

23 mm

1 V overhead. External PWM input. Efficiency claimed is maximum; typical efficiency unknown.

Last updated 22 Dec 2011.

Micro 2800

PCB Components

$29.00 (approx)
€19.95 (actual) + shipping

Buck driver

5-18 V

1-4

94%

2800 mA
constant current

23 mm

1 V overhead. Efficiency claimed is maximum; typical efficiency unknown. Report from a reader: "I have tested it [for] hundreds hours, no problems and no need to heatsink for 2 LEDs with 9 V."

Last updated 22 Dec 2011.

MicroPuck

02009...

LED Supply

$9.99 + shipping

Boost driver and buck driver

0.8-3 V
(as boost; 4.0-8.0 V as buck)

1-2

62-89%

500 mA

12 mm x 8 mm x 7 mm

Can be used as either a buck, or boost, or buck/boost driver - see the Application Notes for connection diagrams and other info. Not a constant current output; they claim this is a design feature to mimic the light dropoff of an incandescent bulb. I'm not convinced. Maximum 8 V output. Can be used in parallel. Efficiency as a boost driver claimed 70-82% (measured at 64-78% in a test with an XP-G here), as a buck driver 82-89%; as a buck/boost driver 62-72%. The datasheet doesn't claim an IP rating but does say "The 2009A is encapsulated by an insulating epoxy and is resistant to harsh environments and moisture."

Available in three versions with nominal outputs of 350, 400 (error in window title bar) and 500 mA.

Last updated 10 Jun 2011.

Mini Boost

101

PCB Components

$23.00 (approx)
€16.95 (actual)

Boost driver

2.7-18 V

1-12

93%

200 mA

25 mm x 12 mm x 4 mm

Maximum output voltage 38 V. Maximum input current 500 mA. Output current set by solder jumpers in 9 steps from 10 mA to 200mA. Dimming by PWM signal. Soft start. Maximum claimed efficiency listed here; typical efficiency for any particular configuration unknown.

Suitable for Cree MP-L.

Last updated 22 Dec 2011.

Mini Constant Current Power Supply with rectifier,
9 versions 20-100 mA

Led-Tech

$2.80 (approx)
€1.99 (actual) + shipping

Linear regulator

6.5-38 V DC; also works with AC
(4.5-26 V AC)

1-10

7-45%

100 mA
constant current

16 mm x 7.5 mm x 3 mm

Linear regulator based on a LM317 voltage regulator chip, with a rectifier so it can cope with AC (and can be connected either way with DC). Available in nine versions providing 10 mA, 20 mA, 30 mA, 40 mA, 50 mA, 60 mA, 70 mA, 80 mA and 100 mA. Supply voltage needs to be at least 3.8 V higher than total LED V_f and not more than 38, 27, 18, 14, 12, 10, 9, 8 or 7 V higher respectively for the different versions. Efficiency figures are given for a single LED but could theoretically be as high as 90% for a string.

Last updated 10 Jun 2011.

Mini Constant Current Power Supply,
9 versions 10-100 mA

Led-Tech

$2.80 (approx)
€1.99 (actual) + shipping

Linear regulator

5.2-37 V

1-10

7-52%

100 mA
constant current

16 mm x 7.5 mm x 3 mm

Linear regulator based on a LM317 voltage regulator chip, available in nine versions providing 10 mA, 20 mA, 30 mA, 40 mA, 50 mA, 60 mA, 70 mA, 80 mA and 100 mA. Supply voltage needs to be at least 2.5 V higher than total LED V_f and not more than 37, 27, 18, 14, 12, 10, 9, 8 or 7 V higher respectively for the different versions. Efficiency figures are given for a single LED but it could theoretically be as high as 93% for a string.

Last updated 10 Jun 2011.

Mini FLu-PIC

178

Other

$25.00 + shipping

Unspecified driver type

0-0 V

600 mA

11 mm

As with the FLu-PIC, specs aren't given. It does claim to have multiple modes, though: Hi/Burst (450-600 mA), User Set, Low, Off, Brightness Set (for user set level) between 1-10 levels.

Last updated 10 Jun 2011.

Mini SMD Buck

PCB Components

$11.40 (approx)
€7.95 (actual) + shipping

Buck driver

3.5-9 V

92%

1100 mA

17 mm

Output drops out of regulation below 4.5 V input, which probably means 1 V overhead. Efficiency claimed is maximum; typical efficiency unknown.

Last updated 22 Dec 2011.

MR16 1x1W

61373

Other

$1.41

Buck driver

MR16 driver

12-12 V DC; also works with AC

12 V car battery

90%

350 mA

Slightly dodgy specs. Claimed output voltage 2.2-2.4 V is probably wrong. Built-in rectifier, so can be used with AC.

Last updated 4 Jul 2011.

MR16 1x1W

42386

Other

$2.61

Buck driver

MR16 driver

12-16 V DC; also works with AC

12 V car battery

330 mA

19 mm x 14 mm x 13 mm

Built-in rectifier, so can be used with AC.

Last updated 4 Jul 2011.

MR16 1x3W

61374

Other

$1.41

Buck driver

MR16 driver

12-12 V DC; also works with AC

12 V car battery

90%

600 mA

Output voltage 3.2-3.6 V. Built-in rectifier, so can be used with AC.

Last updated 4 Jul 2011.

MR16 1x3W

42385

Other

$2.61

Buck driver

MR16 driver

12-16 V DC; also works with AC

12 V car battery

650 mA

18 mm x 14 mm x 14 mm

Dodgy specs that suspiciously mirror DealExtreme mistakes. Built-in rectifier, so can be used with AC.

Last updated 4 Jul 2011.

MR16 3W driver

66270

DealExtreme

$5.20 for 5

Buck driver

MR16 driver

12-12 V DC; also works with AC

1-3

12V AC or DC

85%

300 mA

Can be modified to 1000 mA

28 mm x 18 mm x 8 mm

Output voltage 3-10.5 V. Driver chip MC34063A, which has a 1.5 A maximum (and is specified for DC-DC converters, not constant current LED drivers). Driver comes with SS14 Schottky diode.

Last updated 4 Jul 2011.

MR16 3W driver

66273

DealExtreme

$6.20 for 5

Buck driver

MR16 driver

12-12 V DC; also works with AC

12 V AC or DC

80%

650 mA

Can be modified to 1000 mA

28 mm x 18 mm x 8 mm

Output voltage 3-5 V. Driver chip MC34063A, which has a 1.5 A maximum (and is specified for DC-DC converters, not constant current LED drivers). Driver comes with SS14 Schottky diode.

Last updated 4 Jul 2011.

MR16 3x1W

61372

Other

$1.41

Buck driver

MR16 driver

12-12 V DC; also works with AC

12 V car battery

90%

300 mA

Slightly dodgy specs. Claimed output voltage 2.2-2.4 V is probably wrong, since it also claims to drive 3 LEDs. Built-in rectifier, so can be used with AC.

Last updated 4 Jul 2011.

MR16 3x1W

42387

Other

$2.61

Buck driver

MR16 driver

12-16 V DC; also works with AC

N/A

12 V car battery

330 mA

15 mm x 14 mm x 14 mm

Built-in rectifier, so can be used with AC.

Last updated 4 Jul 2011.

MR16 4W driver

66271

DealExtreme

$5.20 for 5

Buck driver

MR16 driver

12-12 V DC; also works with AC

1-4

12 V AC or DC

80%

300 mA

Can be modified to 1000 mA

28 mm x 18 mm x 8 mm

Unknown operation method. Claimed output voltage 12-18 V, which would be hard to do even with 12 V AC with just buck, implies buck/boost. Driver chip MC34063A, which has a 1.5 A maximum (and is specified for DC-DC converters, not constant current LED drivers). Driver comes with SS14 Schottky diode.

Last updated 4 Jul 2011.

MR16 6W driver

66272

DealExtreme

$6.20 for 5

Buck driver

MR16 driver

12-12 V DC; also works with AC

12 V AC or DC

90%

400 mA

Can be modified to 1000 mA

28 mm x 18 mm x 8 mm

Output voltage 10-12.5 V. Driver chip MC34063A, which has a 1.5 A maximum (and is specified for DC-DC converters, not constant current LED drivers). Driver comes with SS14 Schottky diode.

Last updated 4 Jul 2011.

MR16 9W driver

66274

DealExtreme

$6.20 for 5

Buck driver

MR16 driver

12-12 V DC; also works with AC

12 V AC or DC

90%

600 mA

Can be modified to 1000 mA

28 mm x 18 mm x 8 mm

Claimed output voltage 9-12 V, which implies 4 LEDs but it's unclear if this is the case, and if so, how many volts DC input it will need. Driver chip MC34063A, which has a 1.5 A maximum (and is specified for DC-DC converters, not constant current LED drivers). Driver comes with SS14 Schottky diode.

Last updated 4 Jul 2011.

MR16 base, 3x1W

S009686

KaiDomain

$2.38 for 2
(up from $2.33)

Buck driver

MR16 driver

12-12 V DC; also works with AC

350 mA

27 mm x 24 mm x 9 mm

Incomplete and/or stupid specifications given. Looks like it has a built-in rectifier, so can be used with AC.

Formerly product ID 10937.

Last updated 21 Nov 2011.

MR16 base, 4x1W

S009687

KaiDomain

$2.80 for 2
(up from $2.73)

Buck driver

MR16 driver

12-12 V DC; also works with AC

350 mA

27 mm x 24 mm x 9 mm

Incomplete and/or stupid specifications given. Looks like it has a built-in rectifier, so can be used with AC.

Formerly product ID 10938.

Last updated 21 Nov 2011.

MR16 driver, 3W

47354

DealExtreme

$2.10

Buck driver

MR16 driver

12-17 V DC; also works with AC
(12 V AC)

1-3

300 mA

Can be modified to 1000 mA

25 mm x 14 mm x 11 mm

Incomplete specifications given. MC34063A driver chip, which has a 1.5 A maximum (and is specified for DC-DC converters, not constant current LED drivers). Unknown input voltage range (12 V AC is about 17 V DC). Presumably it can drive 3 LEDs because it's called a "3W" driver. Built-in rectifier, probably four Schottky SS14 diodes.

There are MR16 sockets available for them - round (17 mm diameter) and rectangular (28 mm x 17 mm).

Tip: If using DC you wouldn't need the rectifier so you could short that out for a few percent efficiency gain, but it will still work with it left intact.

Last updated 4 Jul 2011.

MR16-base driver: 1x 1 W (v2)

13553

DealExtreme

$2.20
(down from $2.25,
down from $2.34,
down from $2.53)

Buck driver

MR16 driver

8-25 V DC; also works with AC
(claimed 12-40 V for board is wrong as PT4115 is 30 V max)

1-8

2-4x Li-ion,
12 V car battery

80-92%

350 mA
constant current

18 mm x 14 mm x 11 mm (31 mm x 18 mm x 11 mm including prongs and output terminals)

Buck regulator based on PT4115 chip. Earlier version EQB8L chip. They're not quite equivalent as the PT4115 will turn off under 8 V and the EQB8L will still work under 4 V (voltages not including the rectifier on this driver). Constant current out 330 mA or 370 mA (average 350 mA in this table); there's no difference between the two 1 W versions except maybe the set resistor (R270 for 370 mA or R300 for 330 mA). Built-in rectifier, normally four Schottky SS14 diodes.

There are MR16 sockets available for them - round (17 mm diameter) and rectangular (28 mm x 17 mm).

Tip: If using DC you wouldn't need the rectifier so you could short that out for an estimated 97% efficiency, but it will still work with it left intact.

Last updated 21 Nov 2011.

MR16-base driver: 1x 3 W (v2)

13557

DealExtreme

$2.20
(down from $2.25,
down from $2.39,
down from $2.53)

Buck driver

MR16 driver

8-25 V DC; also works with AC
(claimed 12-40 V for board is wrong as PT4115 is 30 V max)

1-8

2-4x Li-ion,
12 V car battery

55-97%

700 mA
constant current

18 mm x 14 mm x 11 mm (31 mm x 18 mm x 11 mm including prongs and output terminals)

Buck regulator based on PT4115 chip. Earlier version EQB8L chip. They're not quite equivalent as the PT4115 will turn off under 8 V and the EQB8L will work under 4 V (voltages not including the rectifier on this driver). Maximum voltage listed is from max rating for output capacitor. Constant current out 650-700 mA. Built-in rectifier, normally four Schottky SS14 diodes.

The PT4115 version is said to be quite good with one and quite good or excellent when driving two or more (unfortunately the test results to which I had linked have been withdrawn pending further investigation). For automotive use (~12V) the EQB8L version of this 3 W driver is not very efficient when driving only one LED, but quite good with two (84%); thus the EQB8L seems better suited to lower currents with single LEDs. There are a couple reports of this version emitting RF noise causing interference with car radios and remote locking, but most users haven't found any interference.

There are MR16 sockets available for them - round (17 mm diameter) and rectangular (28 mm x 17 mm).

Tip: If using DC and sure of polarity you wouldn't need the rectifier so you could short that out for an extra 4-6% efficiency gain, but it will still work with it left intact.

Last updated 21 Nov 2011.

MR16-base driver: 3x 1 W (v2)

13555

DealExtreme

$2.25
(down from $2.34, down from $2.53)

Buck driver

MR16 driver

8-25 V DC; also works with AC
(claimed 12-16 V AC for board)

1-4

2-4x Li-ion,
12 V car battery

80-95%

350 mA
constant current

18 mm x 14 mm x 11 mm (31 mm x 18 mm x 11 mm including prongs and output terminals)

Buck regulator based on PT4115 chip. Earlier version EQB8L chip. They're not quite equivalent as the PT4115 will turn off under 8 V and the EQB8L will still work under 4 V (voltages not including the rectifier on this driver). Maximum voltage listed is from max rating for output capacitor. Constant current out 330 mA or 370 mA (average 350 mA in this table); there's no difference between the two 1 W versions except maybe the set resistor (R270 for 370 mA or R300 for 330 mA), but efficiency is unknown when running a 3 LED configuration. Built-in rectifier, normally four Schottky SS14 diodes.

There are MR16 sockets available for them - round (17 mm diameter) and rectangular (28 mm x 17 mm).

Tip: If using DC you wouldn't need the rectifier so you could short that out for a few percent efficiency gain, but it will still work with it left intact.

Last updated 30 Jul 2011.

MR16-base drivers:
1x 1 W,
3x 1 W,
1x 3 W

DealExtreme

$2.53
(sold out and/or discontinued)

Buck driver

MR16 driver

5-18 V DC; also works with AC
(DC for driver chip, claimed 12-16 V AC for board)

1-4

4-12x NiMH,
5-12x alkaline,
2-4x Li-ion,
12 V car battery

350 mA
constant current

18 mm x 14 mm x 14 mm

Buck regulator based on the discontinued PT4105 chip - see separate notes below. Constant current out 320-350 mA for 1 W versions, 650-700 mA for 3W version (not 320-350 mA as stated).

These drivers have their own bridge rectifier using low-voltage Schottky diodes, so they can handle (low voltage) AC or DC input. While these drivers are claimed to handle 12-16 V AC, the PT4105 is only specified to handle up to 18 V input, so allowing for perhaps 0.4V drop on each of two Schottky diodes being used at any time in the rectifier, anything over about 13.7 V_rms AC would be outside the PT4105 spec.

Tip: If using DC you wouldn't need the rectifier so you could short that out, but it will still work (slightly less efficiently) with it left intact.

Last updated 4 Jul 2011.

MultiLine PWM Dimmer

LT-1202

Led-Tech

$21.00 (approx)
€14.90 (actual) + shipping
(sold out and/or discontinued)

User interface board

7-30 V

N/A

10 A

138 mm x 16 mm x 20 mm (or 40 mm with knob)

PWM dimming only. Scroll bar design with a PWM frequency of 450 Hz giving 0-100% control of constant current or voltage supply - ie, needs to be used with a regulator. Short circuit protected.

Last updated 21 Jun 2011.

MultiLine PWM Dimmer with Potentiometer

LT-1618

Led-Tech

$19.00 (approx)
€14.90 (actual) + shipping

Unspecified driver type

7-30 V

N/A

10 A

50 mm x 35 mm x 25 mm

PWM dimming only. Scroll bar design with a PWM frequency of 450 Hz giving 0-100% control of constant current or voltage supply - ie, needs to be used with a regulator. Short circuit protected.

The LT-1619 version has IR sensor and remote control.

Last updated 10 Jun 2011.

MultiLine PWM Dimmer, 3 channel

LT-1203

Led-Tech

$63.00 (approx)
€44.50 (actual) + shipping
(sold out and/or discontinued)

User interface board

7-30 V

N/A

10 A

138 mm x 52 mm x 20 mm (or 40 mm with knob)

Last updated 21 Jun 2011.

NANJG 112A

S009113

KaiDomain

$4.74 each (down from $4.82 while it was sold out, down from $5.02), also available in 5 pack
(sold out and/or discontinued)

Boost driver and buck driver

0.9-4.2 V

1x Li-ion

1000 mA

17 mm

Unclear what it does when input voltage is greater than LED Vf - possibly just direct drive, but it claims to buck. Similar to NANJG 28 but with contacts for different mode groups like AK-47; with a suitable switch you could change between groups with 2, 3, 3 and 5 modes on the fly. Output current with 1x AA claimed to be 300-500 mA. This review says the low and medium modes are very close together.

Formerly product ID 10243. Also available as a 5 pack, S009114 (formerly product ID 10246).

Last updated 21 Nov 2011.

NANJG 18

7882

DealExtreme

$4.26
(sold out and/or discontinued)

Boost driver

0.8-7 V

1-2x NiMH

60-91%

1000 mA

17 mm

Former version 19 mode NANJG 16 (NJG-016) is the one pictured on DX. New version (NJG18) has the first mode group with just low, medium, high as detailed here.

Previous version: 19 mode boost driver using "Seiko S-8352D (or a clone thereof)" (datasheet, PDF 528 KB) which is a constant voltage boost driver chip. User-adjustable output voltage (not current) ~2 V up to 7.4 V. Output voltage must be greater than input voltage; one report says it will keep working down to 0.3 V but will not turn on unless input voltage is at least 1.1 V. Note that it runs out of regulation, so is not a constant current or constant voltage driver. Capable of ~700 mA output from a single AA NiMH cell, or ~1000 mA from two. Efficiency in the 60-70% range if output is much over 1 W (running the board on 1x AA), and pushing 90% at ~1 W - amazing for an inexpensive boost driver. Do not operate without a load connected.

Is it suitable for a Li-ion cell? See a good analysis here by Tido, who writes: "Yes and no. It's possible to use this circuit with a high Vf LED like an XR-E... Things are different with an XP-G..."

Tip 1: To disable modes (and a mode list) see this post.

Tip 2: A mod to get this driver to fit an Ultrafire A10 is detailed here.

Last updated 21 Nov 2011.

NANJG 20

4735

DealExtreme

$6.46 for 3

Boost driver

0.8-3.3 V
(old version 1.5-4.2 V)

41-86%

970 mA

17 mm (not 16 mm)

Boost driver (uses 2106F regulator chip). Reliable test data is hard to find and is complicated by people using different wiring methods. Some results are here and here but in the latter test, as pointed out, the output voltage dipping while the output current still climbs does seem a bit hard to believe. Discussion thread here.

Tip 1: It seems that modifying the set resistor to give a lower output current (max 500 mA) is a good idea.

Tip 2: Different wiring methods may give different efficiency figures.

Last updated 10 Jun 2011.

NANJG 28

15880

DealExtreme

$5.35
(formerly $5.50)

Boost driver and linear regulator

0.9-4.5 V

1-3x AA (2x AA ideal),
1x Li-ion

63-83%

1000 mA
constant current

17 mm

Recent buyers have reported problems with this driver. Buyer beware.

Boost driver, possibly Seiko S-8352D boost chip. Uses PIC12F629 microcontroller chip for modes, probably with an AMC7136 (sic) linear regulator (datasheet, PDF 954 KB) for dropping small excess voltage as well. 5 modes: High (1,000 mA), mid (350 mA), low (50 mA), strobe (1,000 mA), SOS (1,000 mA). Testing here and here shows that above 2.4 V input the output current is surprisingly regulated. Average efficiency 70%.

Last updated 21 Nov 2011.

Nano Dim v2 Mini PWM Dimmer

PCB Components

$38.00 (approx)
€19.95 (actual) + shipping

User interface board

3.5-24 V

N/A

2500 mA

18 mm

Up to 50 W power switching. Control with potentiometer or two buttons (0-100% stepless), or with a single button (three levels 25%, 50%, 100%, long press turns off). Selectable dimming frequency.

Last updated 22 Dec 2011.

nFlex

nflex

TaskLED

$30.00 + shipping
(sold out and/or discontinued)

Buck driver

4-30 V

85%

1000 mA
constant current

28 mm x 20.3 mm

Buck regulator. Constant current out 1000 mA (user reconfigurable, 350 mA default) at up to 25 V, uController UI.

Last updated 10 Jun 2011.

P7 or MC-E driver

S009821

KaiDomain

$23.39 for 5
(up from $22.77)

Unspecified driver type

3.7-4.2 V

1x Li-ion

2800 mA

17 mm (guess)

Three modes; high, low, strobe. Incomplete specs given. No inductor present so it's not a buck driver. Input voltage specs indicate it may be just a PWM driver.

Formerly product ID 11074.

Last updated 21 Nov 2011.

P7 or MC-E driver, 3 mode

S009721

KaiDomain

$7.99
(sold out and/or discontinued)

Buck driver

5.5-12 V

3000 mA

19 mm

3 modes; low (10%), medium (50%), high (100%).

Formerly product ID 10973.

Last updated 21 Nov 2011.

PA30, 5-7x 1 W (LF-G139A v1.1)

13690

DealExtreme

$5.10 (down from $5.99)

Mains buck driver

85-265 V AC

5-7

115 V or 230 V AC mains power

86%

320 mA
constant current

42 mm x 42 mm x 14 mm

Transformer with buck regulator. Constant current out 320 mA @ 16-26 V. Some analysis of the driver is posted here.

Last updated 28 Jul 2011.

PA38, 9-12x 1 W

13691

DealExtreme

$7.11 (formerly $8.23)

Mains buck driver

85-265 V AC

9-12

115 V or 230 V AC mains power

320 mA
constant current

45 mm x 45 mm x 29 mm

Transformer with buck regulator. Constant current out 320 mA @ 27-42 V.

Last updated 10 Jun 2011.

PAR30 7x1W
(SD-LS009)

S009690

KaiDomain

$6.74 for 2
(up from $6.57)

Mains buck driver

85-265 V AC

5-9

115 V or 230 V AC mains power

350 mA

60 mm x 48 mm x 18 mm

Nov 2011: Output voltage 15-28 V.

Previously: This is a good example of what's wrong with KD. There are no specs given other than the product title, and that uses mAh instead of mA. It's just an assumption that it's for 110 V. Assumed suitable for 7 LEDs only.

Formerly product ID 10941.

Last updated 21 Nov 2011.

PAR38 12x1W

S009691

KaiDomain

$6.95 for 2
(up from $6.79)

Mains buck driver

110-120 V AC

350 mA

65 mm x 56 mm x 24 mm

This is a great example of what is wrong with KD. There are no specs given except in the product title, and that uses mAh instead of mA. PAR38 bulbs are available for both 110 V and 230 V so it's just a guess that this driver is for 110 V.

Formerly product ID 10942.

Last updated 21 Nov 2011.

Power Supply (adjustable) for 1-10x 1 W LEDs

LT-574

Led-Tech

$35.00 (approx)
€24.90 (actual) + shipping

Mains buck driver

95-260 V AC

1-10

115 V or 230 V mains power

350 mA
constant current

101 mm x 42 mm x 20 mm

Output can be adjusted using a potentiometer (not included).

Last updated 10 Jun 2011.

Power Supply (adjustable) for 1-16x 1 W LEDs

LT-840

Led-Tech

$42.00 (approx)
€29.90 (actual) + shipping

Mains buck driver

230-240 V AC

1-16

230 V mains power

350 mA
constant current

110 mm x 52 mm x 24 mm

Two output channels, each 30 V, 10 W maximum. Output can be adjusted using a potentiometer (not included). IP20 housing.

Last updated 10 Jun 2011.

Power Supply (adjustable) for 1-3x 3 W LEDs

LT-586

Led-Tech

$35.00 (approx)
€24.90 (actual) + shipping

Mains buck driver

95-260 V AC

1-3

115 V or 230 V mains power

700 mA
constant current

101 mm x 42 mm x 20 mm

Output can be adjusted using a potentiometer (not included).

Last updated 10 Jun 2011.

Power Supply flexible for 350/700mA LEDs, 20W

LT-841

Led-Tech

$35.00 (approx)
€24.90 (actual) + shipping

Mains buck driver

220-240 V AC

1-8

230 V AC mains power

700 mA
constant current

111 mm x 56 mm x 25 mm

Can be switched to provide 350 mA or 700 mA constant current output, or various constant voltages from 4 V (5 W) to 24 V (20 W). IP20 housing.

Last updated 10 Jun 2011.

PowerLine Constant Current Power Supply,
6 versions 350 mA - 2.8 A

Led-Tech

$21.00 (approx)
€14.90 (actual) + shipping

Linear regulator

7-30 V
(actual permitted V over total LED V_f varies)

1-8

46-96%

2800 mA
constant current

63 mm x 21 mm x 33 mm

Linear regulator with a heatsink, available in six versions providing 350 mA, 700 mA, 1000 mA, 1.4 A, 2.0 A and 2.8 A. Large input voltage range (the minimum input voltage of 1 V is assumed) but input voltage must be at least 1 volt above output voltage and a maximum of 22, 13, 9, 7, 6 or 4 V above output voltage for the respective versions. The mention of PWM is believed to mean this driver can be used with a separate PWM driver, not that this driver uses PWM. Has thermal protection and output short circuit protection.

Also available in SLIM versions which lack the heatsink and so have tighter input voltage tolerances.

Last updated 10 Jun 2011.

PowerLine SLIM Constant Current Power Supply,
8 versions 180 mA - 2.8 A

Led-Tech

$18.00 (approx)
€12.90 (actual) + shipping

Linear regulator

1-30 V
(actual permitted V over total LED V_f varies)

1-8

63-96%

2800 mA
constant current

50 mm x 7 mm x 15 mm

Linear regulator, available in eight versions providing 180 mA, 350 mA, 500 mA, 700 mA, 1000 mA, 1.4 A, 2.0 A and 2.8 A. Large input voltage range (the minimum input voltage of 1 V is assumed) but input voltage must be at least 1 volt above output voltage and a maximum of 10, 10, 7, 5, 4, 3, 2.5 or 2 V above output voltage for the respective versions. The mention of PWM is believed to mean this driver can be used with a separate PWM driver, not that this driver uses PWM. Has thermal protection and output short circuit protection.

Also available in non-SLIM versions which have a heatsink, allowing better heat dissipation and wider input voltage tolerance.

Last updated 10 Jun 2011.

PowerPuck

02008b...

LED Supply

$17.99 + shipping

Buck driver

5-32 V

1-6

86-95%

1000 mA
constant current

38 mm diameter (flanges 64 mm long) x 13 mm height

Input voltage must be at least 2 V higher than output voltage. Output has short circuit protection (15 seconds) and open circuit protection. Versions available with outputs of 350, 700 or 1,000 mA.

Last updated 10 Jun 2011.

PS-SP12118, 5V 3A DC-DC Converter Board

1139

Sure Electronics

$5.99 + shipping

Step-down (non-buck) driver

5-24 V

12 V automotive

3000 mA

83 mm x 51 mm x 16 mm

This is a DC-DC converter using an LM2596 with a constant 5 V output, not a current controlled LED driver. The maximum output current is 3 A.

Last updated 10 Jun 2011.

PWM 5 mode driver

S005025

KaiDomain

$4.33
(up from $3.99)

Unspecified driver type

3.2-4.5 V

N/A

3500 mA

17 mm

Vague specifications given but from the test data given it's apparently PWM dimming only in which case this board does no current limiting but could be used in conjunction with other drivers that do. 5 modes; high, medium (45%), low (10%), strobe, SOS.

Formerly product ID 1845.

Last updated 21 Nov 2011.

QuadPuck

04016

LED Supply

$159.99 + shipping

Buck driver

8-32 V

1-72

1100 mA
constant current

110 mm x 64 mm x 25 (or 17) mm

Four channel driver (using four BuckPucks) with independent dimming (140-1100 mA) on each channel (thus up to 4400 mA total). Dimming controller (eg, PC) sold separately. PCB length 102 mm but two connectors hang over the end.

Last updated 10 Jun 2011.

Remora

988

Sandwich Shoppe

$9.00 + shipping

User interface board

2.7-20 V

N/A

19 mm across; roughly half of a round Shark sized board

User interface board for the various Shark drivers - not usable by itself. Available in two flavours - three mode Plain (low, medium, high) and four mode Special (with SOS).

Last updated 17 Oct 2010.

RGB LED Dimmer Controller w/ Remote Control

73676

DealExtreme

$20.00

User interface board

12-24 V

1-6

8 A

103 mm x 62 mm x 35 mm

RGB controller. Unclear if it does any current limiting. IR remote control.

Last updated 24 Dec 2011.

RGB LED strip dimmer

108424

DealExtreme

$7.60

User interface board

12-12 V

1-3

2000 mA

49 mm x 32 mm x 23 mm

3 channel. Maximum 2 A per channel. The dimensions originally given (83 mm x 50 mm x 7 mm) were probably for the IR remote control.

Last updated 5 Dec 2011.

RGB Light Strip Controller w 4 key wireless remote

67414

DealExtreme

$16.60

Unspecified driver type

- V

N/A

More details coming soon.

Last updated 26 Aug 2011.

RGB Light Strip Controller w wireless touch panel remote

67412

DealExtreme

$33.90

Unspecified driver type

- V

N/A

More details coming soon.

Last updated 26 Aug 2011.

RT-T1 single channel dimmer

108468

DealExtreme

$12.50

User interface board

12-24 V

1-6

8 A

105 mm x 53 mm x 32 mm

Single channel.

Last updated 4 Dec 2011.

S-05330A

48095

DealExtreme

$10.10

Mains buck driver

220-240 V AC
(*)

1 LED included

115 V or 230 V AC mains power *

330 mA

* Unclear if compatible with 110-120 V AC operation; driver label claims universal mains voltage input, description only mentions 220V. Output 3-5 V.

1 white LED included (in a fancy aluminium holder).
Last updated 10 Jun 2011.

S-05660A 220V

48094

DealExtreme

$12.60

Mains buck driver

220-240 V AC

1 LED included

230 V AC mains power

330 mA

Output current 310-350 mA, output 3-5 V.

1 cool white LED included (in a fancy black and red holder).

Last updated 10 Jun 2011.

S-26330
(4-7)*1W

80835

DealExtreme

$17.30

Mains buck driver

110-265 V AC

4-7

5 LEDs included

115 V AC or 230 V AC

330 mA

Output 12-26 V.

5 warm white LEDs included (in an aluminium downlight).

Last updated 10 Jun 2011.

SD12-1A, 1 A buck driver

S008847

KaiDomain

$2.99
(down from $3.38)
(sold out and/or discontinued)

Buck driver

3-12 V

1000 mA

17 mm

The driver chip shown in the photo is the discontinued PT4105.

Formerly product ID 9910.

Last updated 21 Nov 2011.

Seoul P7 3-mode UI Driver board

464

Other

$12.25 + shipping

Buck driver

5.5-12 V

2x Li-ion

76-83%

3000 mA

17 mm double sided board

Buck driver using PWM for modes. Three modes; low (5%), medium (35%) and high (100%), includes mode memory. Not constant current - output changes with input voltage - but is claimed to push a SSC P7 "very hard" and thus needs good heatsinking. Thermal protection may have been removed in the latest version.

Appears to be the same as this driver.

Last updated 10 Jun 2011.

Seoul P7 5-mode UI Driver board

460

Other

$5.99 + shipping

Buck driver

3.2-4.5 V

1x Li-ion

2380 mA

17 mm

Stupidly, this driver completely vanishes from the retailer's web site when temporarily out of stock.

Buck driver using PWM for modes. Modes are high (100%), medium (45%), low (10%), strobe, SOS. Includes mode memory. The claimed output appears very unregulated, with a fresh Li-ion giving 2.38 A, and dropping to just 1.1 A.

Last updated 10 Jun 2011.

Shark

721

Sandwich Shoppe

$20.00 + shipping
(sold out and/or discontinued)

Boost driver

2.7-20 V

1-5

"Great for use in Mag C & D."

77-93%

980 mA
constant current

19 mm

This product has vanished from the retailer's web site.

Boost regulator, although Wayne says "The Shark has a hard time at voltages below ~4V". Vin must be less than Vout, and should be >¹/₃ Vout (preferably >¹/₂ Vout). Maximum input current 4 A, efficient up to 2 A. Regulates on voltage or current, output current adjustable from 50-980 mA (or greater by changing set resistor, although that would remove load protection) at maximum 26 V. Open circuit protected. Some questions are answered in this forum thread.

Shark vs MaxFlex forum thread.

Last updated 6 Jul 2011.

Shark Buck

1244

Sandwich Shoppe

$27.00 + shipping

Buck driver

5-15 V

1-3

75-79%

3000 mA
constant current

19 mm

Three versions available (different set resistors), with output current set to 1 A, 2 A and 3 A. For some strange reason complete specifications are not readily available but some more information is available in this thread, where Wayne says you can drive "maybe 4" LEDs. (I can't see any explanation why the efficiency graph shows values 2% higher than the table.)

Last updated 10 Jun 2011.

Single Channel LED Dimmer Controller

111145

DealExtreme

$8.10

User interface board

12-24 V

1-6

12 V or
24 V DC

8 A

89 mm x 60 mm x 35 mm

Single channel, 12-24 V PWM dimming, maximum current 8 A.

Last updated 24 Dec 2011.

SLCB-4A0

105207

DealExtreme

$16.00

User interface board

12-24 V

1-6

4000 mA

38 mm x 28 mm x 16 mm

Presumed to be a PWM controller for RGB LED strips which have current limiting resistors built in. 3 channel, output current maximum 4A per channel. 3 modes; smooth flow, strobe, fading. Blue anodised aluminium box, claimed to be waterproof, no rating stated. IR remote control included.

Last updated 8 Nov 2011.

SLCB-4A0W

105209

DealExtreme

$16.00

User interface board

12-24 V

1-6

4000 mA

38 mm x 28 mm x 16 mm

Presumed to be a PWM controller for warm white/cool white 3258 LED strips which have current limiting resistors built in, with the idea apparently being to select the overall tint. 2 channel, output current maximum 4A per channel. Adjustable brightness; 20%, 40%, 60%, 80%, 100%. Golden anodised aluminium box, claimed to be waterproof, no rating stated. IR remote control included.

Last updated 8 Nov 2011.

SLRP-4A0

105210

DealExtreme

$15.70

User interface board

5-24 V

1-6

12 A

38 mm x 28 mm x 16 mm

Repeater for RGB or single colour LED controllers. Hot pink anodised aluminium box.

Last updated 8 Nov 2011.

SOB

1003

Sandwich Shoppe

$18.00 - $20 + shipping

Buck driver

3-16 V

75-85%

1000 mA
constant current

14 mm

Buck regulator. Constant current output, board available as a "blank" (add one or two SMT set resistors), or preset to 400 mA, 500 mA, 750 mA, 917 mA, or 1000 mA. DD when V_in less than V_f. Has thermal protection.

Last updated 10 Jun 2011.

SSC P7/Cree MC-E Buck Converter

CPF member

$35.00 (approx)
€25 (actual) + shipping

Buck driver

4.2-20 V

2800 mA

25 mm x 11 mm high

Available directly from a CPF member. There is a single mode version (€20), a 4-mode version (100%, 70%, 25%, 3%) and a 6 mode version (as 4 mode plus Fade in/out, Strobe). External momentary switch needed to change modes, not included. Sadly the specs are not all in one place, but it appears it may be able to cope with more than one LED, has a mode memory, and has a typical efficiency of about 85%.

Last updated 10 Jun 2011.

SST-50 5 mode

S009442

KaiDomain

$10.12

Buck driver

5-12 V

3280 mA

23 mm - two boards in double layer

5 modes; high, medium (~50%), low (~5%), strobe, SOS. Comes with a warning about the heat. One poster points out it looks very much like KD sku 7542. Another poster's test results are the source of the mode output percentages, and has maximum output just 3.28 A instead of the claimed 5 A. That poster may also have been saying he could only get 3 seconds on high mode before thermal protection cut in. Buyer beware.

Formerly product ID 10653.

Last updated 21 Nov 2011.

SST-90 9A, 5 mode

S010140

KaiDomain

$23.25

Buck driver

6-12 V

9 A

26 mm

5 modes; high, medium, low, strobe, SOS. Output current claimed to be a maximum of 9 A, implying either it's not well regulated or there's a bit of variability between drivers.

Formerly product ID 11409.

Last updated 21 Nov 2011.

SST90 9A, 3 mode

S010139

KaiDomain

$23.25

Buck driver

6-12 V

9 A

37 mm

3 modes; high, middle, low - no flashing modes! Output current claimed to be a maximum of 9 A, implying either it's not well regulated or there's a bit of variability between drivers.

Formerly product ID 11408.

Last updated 21 Nov 2011.

TR-001PB (SST-50 driver)
5-mode with memory

50025

DealExtreme

$6.90

Buck driver

8.4-8.4 V

2x Li-ion

4000 mA

26 mm diameter x 22 mm high - two boards in double layer

5 modes with memory; high 4 A, medium 2 A, low 800 mA, fast strobe 2.8 A, SOS 4 A. Incomplete specs for input voltage.

Last updated 10 Jun 2011.

TR-0021B
(3-18 V, 5 W driver for Cree)

26110

DealExtreme

$1.99

Buck driver

3.6-18 V

1-4

80-95%

1250 mA
constant current

Can be modified to 2500 mA

17 mm

April 2011: AX2002 driver chip used again, with SS34 Schottky diode and 0.2 ohm sense resistor. (Add 1 ohm resistor in parallel to increase output to 1.5 A.) Red board. Or green board (my very next order just after getting a red board).

November 2010: This driver may have changed again, with the YB1682 voltage regulator chip being used. Not good.

Previous version (Feb 2010): Regulator chip AX2002 with 0.2 ohm sense resistor gives output 1.25 A, and the SS34 Schottky diode is great if you want to bump up the output current. DX's description claims it provides different current outputs (1-1.2 A) to different Cree efficacy bins. I think NOT. Tests with the previous version showed a constant 1.10 A, which was very close to the theoretical 1.13 A of an AX2002 with the then 0.22 ohm set resistor. When multiple drivers are used in parallel the efficiency apparently drops, probably because one driver is doing most of the work (and so gets quite hot). Hence, these drivers should probably not be run in parallel.

Every so often the regulator chip changes, and in the case of the AX2002 had its identifying marks removed. This is quite frankly silly, as DX's customers went through another round of not only figuring out what the specs for the board were, but working out what the new chip was as well, before they could figure out the board's specs. The driver chip was suspected by some to be MC34063A (not an obvious choice by any means as the chip isn't pushed as an LED driver and the claimed similarity to a certain reference design doesn't exist), YB1682 (has a different reference design - not surprising because it's a voltage regulator not a constant current driver), PT4105 (unlikely because production of that chip was terminated before this board was listed), PT4115 (unlikely because of reported working voltage range) or AX2002 (perhaps most likely; the board appears to be the reference design except for choice of some components, and my chip has part of an A still showing).

Tip 1: The output current can be increased (or decreased) by changing the set resistor appropriately: I(LED)=0.25V/Rsense. The diode in the product pic is a Schottky SS24, which has a maximum current limit of 2 A, but as of Feb 2010 are shipped with a Schottky SS34, with a 3 A limit. The AX2002 driver chip has a 2.5 A limit and gets very hot over 2 A.

Tip 2: Maximum efficiency is achieved when running multiple LEDs from one driver with just a few excess volts (eg, 4 LEDs with 5 Li-ion).

Last updated 17 Aug 2011.

TR-0022b, 3-mode no memory

25517

DealExtreme

$2.75

Buck driver

3-12 V
(3-8.4 V claimed)

1-2x Li-ion

80-88%

1100 mA

17 mm - two boards in double layer

Unknown regulation method, assumed to be buck because of input voltage range, which is listed as two different ranges in the title and description. Conflicting specs. Driver chip is marked LEDA 0712 (Vsense probably 0.25 V), with Schottky diode SS34. Three modes (presumably using PWM); claimed high 800±50 mA but tested to be 1100 mA, low 200±20 mA, fast strobe claimed 400±50 mA. Output current may vary by battery voltage. Efficiency improves from 80% to 88% if sense resistor is changed to lower the output current.

Although specified for use up to 8.4V it apparently works with 12 V with 2 LEDs (simulated) and the efficiency can be increased to 90% at 1 A output with a mod.

Claims to provide different current outputs (1-1.2 A) to different Cree efficacy bins. I think NOT.

7 Jan 2012.

TR-0022b, 5-mode no memory

26107

DealExtreme

$2.85

Buck driver

3-8.4 V

1-2x Li-ion

80%

1200 mA

17 mm - two boards in double layer

Purchasers in April 2010 reported receiving a 3 mode board (compare with DX's 26111) - buyer beware.

Unknown regulation method, assumed to be buck because of input voltage range. 5 modes (presumably using PWM), high 1200±100 mA, mid 550±50 mA, low 100±10 mA, fast strobe 650±50 mA, SOS 1200±100 mA.

Claims to provide different current outputs (1-1.2 A) to different Cree efficacy bins. I think NOT.

Last updated 10 Jun 2011.

TR-0022b-like, 3-mode with memory

26111

DealExtreme

$2.94

Buck driver

3-8.4 V

1-2x Li-ion

72-90%

1200 mA

17 mm - two boards in double layer

A board purchased in March 2010 reported to be 5 mode and with a maximum output current 800-950 mA (compare with DX's 26107) - buyer beware.

Unknown regulation method, assumed to be buck because of input voltage range. Driver chip is marked LEDA 0712. Three modes with memory; claimed high 1,200±100 mA, low 100±10 mA (bad flickering reported from very low speed PWM), fast strobe 650±50 mA. One reviewer mentioned the mode order is a crazy low, strobe, high. Output current may vary by battery voltage.

Claims to provide different current outputs (1-1.2 A) to different Cree efficacy bins. I think NOT.

Last updated 10 Jun 2011.

TR-0022b-like, 5-mode with memory

26108

DealExtreme

$2.99

Buck driver

3-8.4 V

1-2x Li-ion

1200 mA

17 mm - two boards in double layer

Unknown regulation method, assumed to be buck because of input voltage range. Spec claims 5 modes (presumably using PWM), with memory; claimed high 1200±100 mA, mid 550±50 mA, low 100±10 mA, fast strobe 650±50 mA, SOS 1,200±100 mA. However, one user has posted that with 4x AA NiMH the steady modes were high 700 mA, medium 300 mA, low 60 mA (insufficient voltage?).

Claims to provide different current outputs (1-1.2 A) to different Cree efficacy bins. I think NOT.

Last updated 10 Jun 2011.

TR-0032
(1.5~4.2 V, 3 W driver for Cree)

25505

DealExtreme

$2.19

Boost driver

0.9-3.2 V
(claimed 1.5-4.2 V)

ideal for 2xAA,
NOT suited for 3x NiMH or Li-ion

77-89%

630 mA
constant current

Can be modified to 1000 mA

17 mm

Constant current boost driver with either PAM2801 (max 350 mA) or PAM2803 (max 1000 mA) or J1JD (?) chip. Latest version outputs 630 mA; originally set to 380 mA. Claimed variable output current depending on input voltage, 600 mA (with 1.5 Vin) to 1.2 A (with 4.2 Vin), which makes me wonder what on Earth DX means by "Fully regulated circuit design"; those figures obviously aren't. However, testing by Hilarion showed perfectly stable current output from 1.2-3.2 V; very nice, although only 360 mA. Output current is determined by a sense resistor with 95±5 mV feedback voltage. Thus 0.25 Ω sense resistor as supplied in 2009 gives 380 mA, 0.15 Ω as presently supplied gives 630 mA, 0.1 Ω gives 950 mA (measured 900 mA at ~80% efficiency). Efficiency is said to drop horribly with input current > 2 A.

As pointed out in this thread there are no components to buck voltage as implied, so it would actually be direct drive when Vin is greater than Vf of your LED.

Last updated 10 Jun 2011.

TR-0037 (5~12 V, 9 W driver for 3x Cree), 3-mode

25516

DealExtreme

$3.54

Boost driver

3-10.5 V
(5-12 V claimed, but might be dangerous for driver & LEDs)

4-7x NiMH
2x Li-ion

91%

800 mA
constant current

20 mm - two boards in double layer

The specs given for this driver imply that it'll output 10.8 V with anything from 5 V to 12 V input. This seems very doubtful at this price point - it would mean it was boost/buck. It's very likely boost only, and goes direct drive when the input voltage is greater than the output voltage; the output current is said to rise rapidly and it gets very hot.

Uses the FP5138 boost driver chip. 3 modes - claimed high 800±50 mA, low 200±20 mA, fast strobe 400±40 mA. However one reviewer has claimed the modes are high 900 mA, low 600 mA, strobe 600 mA, and another says they are now 750 mA on high (as of 12/2009). Mode memory switches to the next mode whenever turned on again. Apparently has a battery protection function which disables high mode when battery cannot supply enough current. Input current may be as high as 4 A at 5 V. The efficiency figure listed in this table is from a particular configuration in the driver chip datasheet. YMMV.

Tip: The driver board is the top board (17 mm diameter, with the inductor on it) and can be separated from the lower board if only one mode is wanted. It has set resistors on its underside which can individually be changed to alter high and low modes.

Last updated 23 Oct 2011.

TR-0124-A (SST-90 driver)
5 mode with memory

50026

DealExtreme

$8.90

Buck driver

12-12 V

70%

6500 mA

35 mm diameter x 22 mm high - two boards in double layer

5 mode with memory; high 6.5 A, medium 2 A, low 800 mA, fast strobe 5 A, SOS 6.5 A. Incomplete specs for input voltage.

Last updated 10 Jun 2011.

TR-5055 (5~8.4 V, 15 W driver for 5x Cree), 5-mode with memory

26106

DealExtreme

$3.99

Boost driver

3-12.5 V
(5-8.4 V claimed)

2-6

4-8x NiMH,
2x Li-ion

72-88%

800 mA
constant current

26 mm diameter x 13 mm height

A boost board for up to 5 LEDs in series (so would be ideal for a well-heatsinked MC-E with the dice in series). Has a lovely big-looking inductor and uses the AS2001 regulator chip.

5 modes, with memory - high 800±20 mA, mid 450±20 mA, low 210±10 mA, fast strobe 400±20 mA, SOS 800±20 mA. Test results here or here by EpRoM which includes a 30 minute test at 12.44 V. Voltage across sense resistor is 0.5 V.

Tip 1: An investigation into eliminating the flashing modes is here (for single mode mod see post 11 and pic in post 13).

Tip 2: Operation with >12 V input may need a resistor changed, and for running 6 LEDs the output capacitor may need to be changed - an analysis and discusssion is here.

Last updated 10 Jun 2011.

TR0067
1-2x AA Boost Driver, 5 mode (2 steady)

10084

DealExtreme

$3.00
(sold out and/or discontinued)

Boost driver

1-3 V

1-2x AA,
1x 123A

63-68%

700 mA

16 mm - two boards in double layer

Boost board. Output voltage and current not constant; almost 300 mA from one fresh AA, almost 700 mA output with two fresh AAs. Modes are high, low, and three different flashing options! No mode memory.

Tip: Remove controller board to use as single mode driver.

Last updated 10 Jun 2011.

V10

846

LCK-LED

$6.00 + shipping

Linear regulator

3.2-4.5 V

3500 mA

17 mm

Driver uses at least four AMC7135 chips on one of two back-to-back boards, and probably an ATtiny13 on the other board. Five modes - high (100%), medium (45%), low (10%), strobe, SOS. Claimed constant current, but the maximum output is variously listed as 3.0 A and 3.5 A, and test results listed show the output is definitely not constant over the voltage range tested (and has a high of 3.3 A). This calls into doubt the constant current claim for all drivers from this retailer. Buyer beware. See extra AMC7135 notes below.

Last updated 10 Jun 2011.

Wonder-cuits

Other

$8.00 + shipping

Buck driver

3.3-6 V

1x Li-ion

2000 mA

17 mm

Discussion here claims it does no current limiting other than PWM. Output current can be adjusted to one of 500 mA, 1 A, 1.5 A, 2 A by soldering/unsoldering four parallel set resistors. Specs claim it is "Most efficient when the LED's Vf is similiar to Input Voltage." I wonder who came up with the weirdo name.

Last updated 23 Oct 2011.

Xitanium 12 W

XI-LED120A0350C33F

LED Supply

$27.99 + shipping

Mains buck driver

108-132 V AC

1-8

115 V AC mains power

80%

350 mA
constant current

132 mm x 30 mm x 22 mm

Output voltage 2.6-32.8 V, maximum output power 12.0 W.

Last updated 10 Jun 2011.

Xitanium 17 W

XI-LED120A0700C24F

LED Supply

$27.99 + shipping

Mains buck driver

108-132 V AC

3-6

115 V AC mains power

80%

700 mA
constant current

132 mm x 30 mm x 22 mm

Output voltage 7.8-24.6 V, maximum output power 17.2 W.

Last updated 10 Jun 2011.

Xitanium 25 W dimmable

XI-LED120A0024V10D

LED Supply

$84.65 + shipping

Mains buck driver

108-132 V AC

3-6

115 V AC mains power

80%

1050 mA
constant current

83 mm x 77 mm x 34 mm

Output voltage 7.8-24.6 V, maximum output power 25.5 W.

A non-dimmable version with this output is also available, as is a 230 V AC dimming version.

Last updated 23 Oct 2011.

Xitanium 40 W

XI-LED120A0024V18F

LED Supply

$58.42 + shipping

Mains buck driver

108-132 V AC

3-6

115 V AC mains power

1750 mA
constant current

85 mm x 77 mm x 34 mm

Output voltage 7.8-24.6 V, maximum output power 40 W.

Last updated 10 Jun 2011.

YRHIR005, LED Dimmer with 12-Key IR Remote Controller

82768

DealExtreme

$13.30

User interface board

12-12 V

1-3

12 V DC

8 A

86 mm x 86 mm x 39 mm

Presumed to provide PWM dimming for 12 V DC LED lamps, thus does no current limiting itself. Maximum 96 W power handling. IR remote control.

Last updated 30 Aug 2011.

YRHRF005, LED Single Color Dimmer with Remote Controller

82778

DealExtreme

$11.10

User interface board

12-12 V

1-3

12 V DC

8 A

110 mm x 56 mm x 34 mm

Presumed to provide PWM dimming for 12 V DC LED lamps, thus does no current limiting itself. Maximum 96 W power handling. RF remote control.

Last updated 30 Aug 2011.

Zetex C310 Buck Driver, 8 mode

10421

DealExtreme

$7.35 for two pack
(sold out and/or discontinued)

Buck driver

3.7-8.4 V

3-6x NiMH, 1-2x Li-ion

1000 mA

20 mm

Buck regulator based on Zetex C310 chip and PWM for modes. Output 800-1000 mA on high. Modes 100%, 50%, 30%, 20%, 10%, SOS, strobe, fade in & out (one of very few to have that). With 4x NiMH cells the ability to select modes is lost about when the cells need to be recharged. No reverse polarity protection.

Last updated 10 Jun 2011.

ZPC-0101L-B, 1x3W

81772

DealExtreme

$5.00

Mains buck driver

90-265 V AC

115 V or 230 V AC mains power

90%

650 mA

50 mm x 30 mm x 22 mm

Output voltage 2.2-5 V. Claimed minimum efficiency listed here. Waterproof, IP67 rating.

Last updated 6 Jul 2011.

ZPC-0103L-A, (1-3)x1W

81769

DealExtreme

$5.00

Mains buck driver

85-265 V AC

1-3

115 V or 230 V AC mains power

90%

320 mA

50 mm x 30 mm x 22 mm

Output voltage 2.5-12V. Claimed minimum efficiency listed here. Waterproof, IP67 rating.

Last updated 6 Jul 2011.

µ-Dim - Super miniature PWM dimming

PCB Components

$20.50 (approx)
€14.95 (actual) + shipping

User interface board

3-26 V

N/A

20 mm half disc

Two versions: Buttons, with operation using one button (25%, 50%, 100%, long press turns off) or two buttons (0-100% stepless); or Potentiometers (0-100% stepless).

Last updated 22 Dec 2011.

µBuck

103

PCB Components

$19.00 (approx)
€13.95 (actual)

Buck driver

6-30 V

1-4

95%

1000 mA
constant current

14 mm x 11 mm x 6 mm

Maximum output power ~15 W. Polarity protection. Dimming by PWM signal or DC. Maximum claimed efficiency listed here; typical efficiency for any particular configuration unknown.

Last updated 22 Dec 2011.

µBuck

103

PCB Components

$19.00 (approx)
€13.95 (actual)

Buck driver

6-30 V

1-6

95%

700 mA
constant current

Can be modified to 1000 mA

14 mm x 11 mm x 6 mm

Maximum output power ~15 W. Polarity protection. Dimming by PWM signal or DC. Maximum claimed efficiency listed here; typical efficiency for any particular configuration unknown.

Last updated 22 Dec 2011.

µBuck

103

PCB Components

$19.00 (approx)
€13.95 (actual)

Buck driver

6-30 V

1-9

95%

350 mA
constant current

Can be modified to 1000 mA

14 mm x 11 mm x 6 mm

Maximum output power ~15 W. Polarity protection. Dimming by PWM or DC inputs. Maximum claimed efficiency listed here; typical efficiency for any particular configuration unknown.

Last updated 22 Dec 2011.

Notes

Footnotes & Instructions

Notes on AMC7135 linear regulator (click to expand/contract)

The AMC7135 (datasheet) is is a linear regulator, which means it acts like a variable resistor changing its value to try to keep the current constant. Like a resistor, any dropped voltage is burnt off as heat. Boards include a polarity protection diode and can easily be PWM-driven for lower modes. The boards typically have two of the four chip positions enabled and need small solder bridges to get the other two working. The solder bridges are the yellow dots in this picture by PaulH (see CPF thread).

V_in must be at least 0.12 V above V_f of LED to stay in regulation; drops out of regulation quite gracefully, not suddenly. The graph in the AMC7135 datasheet (Jan 2006) has the 0.1 and 1 volt vertical lines missing. Each AMC7135 provides constant current, about ¹/₃ amp (actually 300-380 mA depending on particular version; I've generally assumed 330-335 mA for above listings). Boards come with one to four AMC7135s, and single mode up to 20 mode. Boards can be paralleled to give greater output. Very efficient when input voltage close to output voltage but not particularly good when input voltage is higher and/or LED V_f is low; average efficiency for 3x NiMH or 1x Li-ion can be well over 90% with the right V_f LED. Test results and discussion for 3 and 4 chip boards.

Since the AMC7135 just burns off excess input volts as heat, the more volts fed into them the hotter they'll get. One guy claimed that his got so hot they slid right off the board (ie, >183-190 °C melting range of 60/40 solder). The AMC7135 has built-in thermal protection (which will cause dropouts or a flickering effect if it gets too hot) but the multi-mode control chips used on the multi-mode boards are much less rugged. (And here.)

To get multiple modes typical microcontrollers used are the Atmel ATtiny13 (or 13A or 13V) and the Microchip PIC12F629. These both have a 5.5 V maximum, while the AMC7135 linear regulator has a 6.0 V maximum. This means that multimode drivers will have a slighty lower maximum voltage than single mode boards.

Tip 1: To get reliable operation at low voltages, especially with only one AMC7135 chip being used, you may need to short out (and maybe remove) the polarity protection diode(s)*. This is because the AMC7135 in series with a polarity protection diode needs a minimum 2.7 V + 0.6 V (silicon diode) = 3.3 V to stay in regulation. The V_f of LEDs at 330-350 mA can easily be quite a bit lower than 3.3 V so will not be running in regulation. Note that if a Schottky diode was used the drop could be as low as 0.3 V instead of 0.6 V.

* However, I found with one multimode board this caused the board to go unstable (don't know exactly why) but I found that inserting a small value resistor instead of the diode was enough to get the driver stable again. Because the drive current through that point in the circuit is so low (6 mA for mine) there's very little voltage drop across the resistor - much less than across the diode - so it still serves the purpose of saving ~0.6 V.

Tip 2: If input voltage is too high you may be able to use another LED in series with the board to drop the voltage. (The set current is <1 mA for single mode boards so both LEDs will get practically identical current. Diagrams and much discussion of use with multiple Seoul P7s and multi-mode boards.) More than one extra LED appears to be not a good idea for use with the lower modes of multi-mode boards since the V_f of the extra LEDs decreases too much at the low current to protect the driver from the battery voltage. Flashing modes appear unsuited to this technique.

AMC7135-based P7 driver options are discussed here, or an inexpensive multimode AMC7135 driver for a Seoul P7 here.

Notes on PT4105 and alternative driver chips (PT4115, AX2002) (click to expand/contract)

PT4105 (datasheet): Production of this driver IC - as used in the Kennan and MR16 base drivers described above - has been terminated. The manufacturer doesn't even have a publicly displayed link to the datasheet any more, which is the weirdest part of it. This from Micro Bridge (now removed from their site; try to ignore the punctuation and spacing):

The PT4105 which the manufacture has already officially stopped producing,and the subsequent instead item is the PT4115,AX2002 and FP6101 Also,The PT4115,AX2002 and FP6101 has superior performance over ,wider input range and more current than the PT4105.

PT4115 (datasheet): While I look forward to the PT4115 being available in low cost LED drivers (by its numbering the apparent successor to the PT4105), I note that it needs an input of at least 8 V (and has under voltage lock out at 6.8 V), so isn't nearly as well suited to low voltage torches as the PT4105 was. It will, however, have its uses for 2x Li-ion torches and automotive purposes. The chip has a DIM pin which can and gives it the ability to very easily be dimmed. Efficiency is about 80-82% for 1 LED, up to 93% for 3 LEDs, and apparently up to 98% for 7 LEDs. Maximum output current 1.2 A.

AX2002 (datasheet): This driver chip from AXElite looks extremely interesting. It will accept a minimum 3.6 V input and has a maximum switched current of 2.5 A, although it tends to overheat at more than 2 A. It includes thermal protection (140°C), over current protection, short circuit protection, and has a PWM control circuit. Its efficiency is good too, with an output of 2 A @ 5 V it's an impressive 91% efficient (with 12 V input). Driving a Cree XR-E at 1 amp will give an efficiency of about 87-88% (with 12 V input). Efficiency is very poor at low currents.

AX2003 (datasheet): The AX2002 also has a big brother, the AX2003, which has a maximum switched current specification of 4 amps - easily enough to drive a Seoul P7, or a Cree MC-E with the dice in parallel. No drivers with the AX2003 are presently known. The spec sheets of the AX chips could do with a few more graphs showing how constant output current is, etc.

FP6101 (datasheet): Not an LED driver.

All that is very well, but it leaves a gap of a high efficiency, really low voltage, low current driver.