Originally Posted by jeff-o
30 LEDs may operate slightly more efficiently than a single 3W Luxeon, but they'll take up a whole lot more space! I have a dual 3W Luxeon setup right now, and I like it. Beware though, the blue-white tinge of the light really does make it harder to see contrast in the road, compared to the yellowish light from a halogen.
I bought my Luxeons from Future Electronics, they were fine to deal with if you like the transaction to be completely robotic.
I went back to their site and read the given specs. The 30 white LED setup uses the same MR16 space as a 3 Watt Luxeon, costs about 2/3 as much and has barely half the power consumption. I will have a look at Future Electronics tho.
ADD: Seems just to sell discrete components. Still some of those array components go way past even a 3 or 5 watt single Luxeon emitter.