- Jul 18, 2009
Finding a switcher that is designed ground up for current regulation (modern LED driver chips) simplifies things a lot. For the current levels you're looking at you would likely need a 'controller' and use an external power FET.
I like the idea of a simple solution. With a sharkcage or even individual shark sinks from the shoppe the fet's could be sinked to the side of the light, even multiple ones if necessary. None of my lights are overdriven and its time to step it up and make a real light. Im thinking sst-90 at 12 amps on high, but a conservative 3 amps for normal use. This would require a very versatile regulator and pushing 4 sharks to their limit kinda worries me. IMO things run better when their is some headroom.