WOW 36 XM-Ls gonna be a monster!I'm trying to build a spotlight with 36 XM-Ls, I'm jealous that you can get away with such small radiators for 16 XM-Ls ;p though obviously flying at 20-60 mph (no idea, what it actually is, sure its somewhere in there) is why you can get away with it. :nana:
I strongly suggest liquid cooling like I've done. If you want to stack the LED one against the others so you don't end up with a massive reflector/lens in order to get a descent spot. Unless each LED have it's own reflectors...
6 strings of 6 LED on 6 copper tubes, driven with the same driver I use will make it.
You end up with a 3cm x 3cm light source.
My plane cruise at 25-30mph, can reach up to 50mph.
-Hugo