Is my red led WF-501B burning out?

[Steve_the_Chief]

The bare metal foil is better. Some folks also use stripes cut out of soda cans.

More information:

P60 XML - which one to buy?

What P60 XML offering is the recommended one? I want something with at least two modes that can drive the LED to a good use but without heating too much. I'll use it in an UltraFire WF-502B host. (will I need to use aluminum foil for better heat management?)

Aluminium foil wrapping

I see that many people use aluminium foil around the dropin to help heatsink. So i want to try to understand the best way to do it. - What kind of aluminium you use, professional or "cooking" aluminium? - You use also thermal compound? Any photo or suggestion to do a perfect job are welcome.