Originally Posted by Becca
Those are interesting points; I've already got the Luxeon ordered and it's on its way. I am concerned about heat-sinking it; I'm going to experiment with that.
The Luxeon datasheets recommend at LEAST 1 square inch per watt, which would be at least 5 square inches for a 5W Luxeon. This is assuming the Luxeon is properly connected to the heatsink with thermal paste or whatever you decide to use. However, for more reliable operation I'd recommend more than 5 square inches, just to be safe.
And Semper... 110 watts of light??? Holy smokes, people are going to think you're a transport truck with your headlights burnt out on one side! How much does your rig weigh?