boosterboy
Enlightened
So has anyone ran into heating issues with their Surefire P60-style Cree drop-ins.
I'm rather hesistant in buying
I'm rather hesistant in buying
I bought the BOG premium cree for the G2. I was worried about heat as well, but the standard P60 lamp feels much warmer to the touch than the cree drop-in, ever after staying on for a few minutes (from my own person experience).
See this thread for more info:
https://www.candlepowerforums.com/threads/166300&highlight=bog+cree
WTH, someone told me recently that LEDs like this type of drop-in can run dangerously cool, in a sense. Since they don't radiate heat out the front of the light like incandescent bulbs do, the heat accumulates inside instead, especially in a G2 with no metal body to "sink" the heat away.
Probably a flawed way of looking at things since the visible and IR radiation put out by a hot filament isn't really cooling things that much. Around 5% (?) of the energy put into an incan bulb is turned into light. The rest goes into making the filament, and thus the entire bulb hot.
Point noted asdalton, but I think it can still be agreed that most of the energy is put into heating the filament. The EM radiation is just a useful secondary effect.
Anyone ever ran their high-powered cree-dropin for a full hour?
...The battery that made contact with the dropin was hot, and it did concern me. It was uncomfortable to hold onto but not scalding hot...