CDRKING Stark LED Tube Light

A quick look at what might be the cheapest LED tube light available right now. An all in one 20W LED tube light fixture from CDRKING, branded as Stark.

Inside the plastic fixture is an LED driver board and a cool white LED strip. The fixture is 30 x 1200 mm.

The LED Driver:

stark_led_driver stark_led_driver stark_led_driver stark_led_driver

220V-240V AC input
118V DC output
MB105 – Bridge rectifier
ES1J – Fast Rectifier
BP2832A – Non-isolated Buck Offline LED Driver
Transformer temperature: 65.7C (measured by Flir One thermal camera)
ES1J temperature: 68.2C (measured by Flir One thermal camera)

The LED strip:

led_strip led_strip

PCB board – no aluminum backing to act as a heat sink
76 LEDS
Every 2 LEDs wired in Parallel. 38 pairs wired in series.
3.1V per LED.

2 thoughts on “CDRKING Stark LED Tube Light

  • February 15, 2017 at 2:28 am
    Permalink

    Hi i saw your video on utube, i buy that stark led 20w, do you know what smd led they are using. Is that 5730 smd led or other. I’m trying to convert it to 12v to use in my solar project. Thanks

    Reply
    • February 17, 2017 at 12:07 pm
      Permalink

      I’m not sure but they’re wired in series. The included power supply converts the 220V AC to 118V DC.

      Reply

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