Hey guys. I'm new here and quite new to LED lighting. I've been searching around the forums and Google for a lot of the answers to my questions and some of which I found the answers to. But I'm kind of looking for help on a specific setup. I'm kind of fearing that I may have bought the wrong parts that are now already on the way here. Figures... I'm an impulsive shopper.
OK, so I'm building a 50w LED headlight system. At the moment, it will be going into a C5 Corvette for testing. C5 Corvettes have flip-up headlights, so space can be both good and bad considering there's a bit of room set aside for lighting alone.
My original plan was to use a single 50w LED for each low beam. (I'm not worrying about the high beams at the moment.) Those LEDs would be powered by a 100w DC/DC converter which I now realize is likely not enough at all. The LEDs have a working voltage range of 18-22V. The DC/DC converter is programmable (via USB) to any voltage at the 0.01v precision. My plan was to power them at 20v.
I'm also trying to figure out how I'm going to focus these lights. My basic idea is to create a reflector in front of the LED that uses the OEM housing to put out light. This would be similar to a reflecting telescope. My other thought was to use a custom arrangement of mirrors. And a final though to use a lens. (But the lens would have to be DOT approved.) Either way, the light has to be cut correctly.
Finally, I've been trying to figure out cooling for the lights. I was thinking I'd be able to get away with a simple P4-style heatsink and a 12v blower fan. But I'm getting the feeling that won't be enough.
So here's my thoughts at this point:
Sell the 50w LEDs I've already purchased and buy 50w LEDs meant for 24-26v operating range and purchase something like this: http://www.current-logic.com/shop/in...&products_id=9
I'd assume with a setup like that, it should have enough power and be far easier to implement.
As for cooling, I was thinking about purchasing 2 30x30 Peltier coolers with a Qmax 50w rating. Although, I think Pelteirs defeat the purpose of LEDs (which is to be more efficient). Is this correct? Then behind the pelteirs I'd put standard p4-style heat sinks and a small 12v push fan.
I'd appreciate any input you guys may have.