Quote Originally Posted by troyboy162
I agree. I'll have to break my books out to figure out the minimum value to be reasonabley assured. I'm sure the driver can handle some flucuations but probably not what a auto can spit at it. I am close to ordering the parts for the project. I think it has a pretty good chance of being very good, but the low point is still the optics avalible. Nothing can really mimic the throw of a good hid spot light with LED yet.

XML LED's on stars are going as low as 6 bucks these days. Drivers range $10-$30 for a 3x3 or 8x8 set up. Optics are $.50-$2.50 per LED. Heat sinks are still the wild card and the hinge point of the project.
One source for cheap/free heatsinks is old computers. We just recycled about 30 machines at work and I scavenged a bunch of parts before we sent them out. How many LEDs are you going to to run per light? Do you have an estimate of how much heat sinking capacity you'll need?

- Matt