Testing a low cost DC/DC boost converter with constant voltage and constant current potentiometers, suitable for driving high power LEDs. The driver can power a single 100W LED without any difficulties, but what about two 100W LEDs in parallel?
Pot adjustment tool: search eBay for Bourns H90/H91
DC DC boost converter Constant Current Mobile Power supply 250W 10A LED Driver http://www.ebay.com/itm/-/321581704576

By Julian

Youtuber, shed dweller, solar charge controller aficionado

15 thoughts on “Julian tests: 250w led driver with 2x 100w leds”
  1. Avataaar/Circle Created with python_avatars Vishv Patel says:

    i recently brought this for fun projects. However, i try to use this but when i give power to vin the output shows noting 0 volt infact the power supply stops working shows 0 voltage. Did i blow the circuit or fuse or any diode?. that's not my field of work but im curious to know about this kind of stuff.

  2. Avataaar/Circle Created with python_avatars amojak says:

    hmm just realised this is zero use for an application i had in mind as the negatives would be common.

  3. Avataaar/Circle Created with python_avatars امیر مهرابیانی says:

    Is it possible to provide a suitable output for the laptop input, which is 19 volts and 7 amps, with or with a 12-volt battery of the car, which is 60 amps?

  4. Avataaar/Circle Created with python_avatars LJ Prep says:

    Biggest, baddest LED light fixture there is, eh? For $25, I got a 126W combo flood/spot light bar, 22" long, from Ebay. ($37-$43 today) It would drive your neighbors CRAZY, Julian. I truly favor the 6500k pure white color to the after-3-pints warm urine color. LOL I'm starting to put together a 100W LED flood light with LIFEPO4, for a portable BRIGHT light.

  5. Avataaar/Circle Created with python_avatars Mayankraj Prajapat says:

    it is rated 10 Amp. but driving output only 5 amp . because i think 10 Amp is input limit not the output limit. and at 25 V and 5 A as output we alredy taking around 12Amp input from 12 V battery

  6. Avataaar/Circle Created with python_avatars Oliver King says:

    How much light are these led's actually kicking out? Can you light up your garden with a single die?

  7. Avataaar/Circle Created with python_avatars rfjgfude says:

    I want to see the biggest baddest LED strip there is!!! Great video!

  8. Avataaar/Circle Created with python_avatars BionicBlitz says:

    5 amps at 36v is 15a at 12v those little wires arent meant for that :p the leads arent helping either

  9. Avataaar/Circle Created with python_avatars Dustin Perez says:

    what are you using to power it? maybe i missed something ?  not ac in hu? is it a battery?

  10. Avataaar/Circle Created with python_avatars Kenn Mossman says:

    Is it wise to put the LEDs in parallel???????????

  11. Avataaar/Circle Created with python_avatars Kenn Mossman says:

    how can you say it is reliable when the LEDs are only on for a few seconds?

  12. Avataaar/Circle Created with python_avatars Kenn Mossman says:

    why not use a flasher circuit then????

  13. Avataaar/Circle Created with python_avatars Claudio Abado says:

    I love the way you explain things

  14. Avataaar/Circle Created with python_avatars Party Pillz says:

    I'm doing something similar but with driverless full spectrum cob chips and dog bowls,does anyone know how hot these chips get?

  15. Avataaar/Circle Created with python_avatars Travis says:

    Do you know of any 30,40 or 50 LED Chips that run on a forward voltage of 9-14V? I have looked everywhere that I know of but am unable to find one. Is that something that would have to be custom made?

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