On a trip the other day, I noticed that I could clearly see the red tail lights (not even brake lights) on an 18 wheeler trailer from over a mile away. When I caught up, I noticed that it only had six emitters arrange in a pentagod with the sixth in the middle. When the brake lights were applied, it looked at least twice as bright, possibly even more than twice as bright.
What are these assemblies using? Are they Luxeons of some sort? I've seen the lights that have about 15-20 LEDs installed, but they were obviously nowhere near as intense per emitter as the ones I'm talking about.
Any chance someone has a couple of these they'd be willing to sell on the cheap?