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1-Mode LED Driver Circuit Board for Flashlight DIY 3V~4.2V input / 17mm ↓ details & specifications
$1.76
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Classification
Product Type Flashlight Driver
Electronic Components
Driver Type Direct drive
Input Voltage 3-4.2 -volt
Low Voltage Warning
Flashlights
Mode Count 1
Package
Package Type OEM
Dimensions us | metric
Depth 4 mm
Height 17 mm
Width 16 mm
Diameter 17 mm
Product Weight 1.0 g
FastTech
SKU 1114501
DATE LISTED 12/5/2012
Details:
  • Suitable for single lithium battery
  • Great for DIY project or repairing your flashlight
  • Battery over-discharge protection kicks in (cuts off power) when input voltage drops to 3V to 3.1V
Test results:

Input Draw Output
4.2V 260mA 790mA
4V 260mA 780mA
3.8V 350mA 800mA
3.6V 400mA 800mA
3.4V 500mA 780mA
3.2V 650mA 800mA
below 3.1V - -

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Return for refund within: 45 days (details)
Return for replacement within: 6 months (details)

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HarleyQuin
Member

VERIFIED OWNER
  • JoinedJan 2013
  • Posts 22
  • Reviews 44
  • Kudos6
Overall
› Quality
› Value
3 of 4 people found the following review helpful
This driver has a major design flaw. It's a buck driver with a maximum voltage of 4.2V, so it can't be used with 2 cells. First problem, the driver drops out of regulation very fast, at about 3.7V. L... (read full review)
Reviewed on 11/16/2013 Was this review helpful to you? Yes / No
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View all threads »


Title Last Posted By
Just FYI: Picture as of [2015-04-18] does not show the driver I reviewed
› started by HarleyQuin on 4/17/2015 9:59:00 PM
Replies: 1
Views: 376
VasyaPupkin
7 / 27 / 2016
This driver for Red LED?
› started by makis1800 on 4/7/2015 1:37:50 PM
Replies: 1
Views: 415
CadillacJack
7 / 17 / 2015
Buck or boost?
› started by kokopelli on 7/23/2013 4:01:16 PM
Replies: 13
Views: 3271
AlexTG
1 / 3 / 2015