Originally Posted by Multibiker
Jeff-o, at 300 ma. without a heat sink the Emitters became too hot to touch after 10 seconds or so, but it takes only a small heat sink to keep them happy. The problem is all the heat is produced in such a small area. A properly designed flashlight will have some way of keeping the LED cool. I wouldn't expect the body of the flashlight to get very hot even with a 3W Emitter. You will get plenty of light though!
Yeah, that's the impression I got from reading the datasheets. Well, I guess I'll see in a week or two how well designed these flashlights really are. The fact that they're pulling 3W from three AAA batteries is kinda suspicious to me, so I'm really looking forward to pulling apart one of these flashlights when they finally arrive.