Building 2000watt light bar, need help with driving it

vettels7

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Feb 11, 2016
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Hey guys im starting project Sunbeam, building a 2000 watt light bar out of 20, 100 watt led modules and using a ebay light bar as the heatsink. The only problem i ran into was the driver.. My first idea was to wire up 20, 150 watt converters, but it would require a ton of room. Is there a way to build one to support the 2000 watt power requirements?
 

gadget_lover

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Oct 7, 2003
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Near Silicon Valley (too near)
The simple answer is that you CAN build a 2000 watt driver. The problem is that you need to limit each of the 20 modules to keep from overdriving some of them.

The best way (that I can think of at the moment) is to set up a power supply as close as possible to the voltage requirement, then add a circuit to each module to limit the current to the optimum drive level. The power supply may be somewhat bigger than desired, but the current limiters can mount near the LEDs themselves.

Daniel
 

PeterH

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Aug 31, 2010
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Out of curiosity, how many square feet or meters of area does your intended heat sink have? 2kW is a lot of LED to heat sink.
 
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