[ QUOTE ]
oldeng95 said:
does the 5w leds really put off as heat as the incandescent ????
[/ QUOTE ]
In an a high performance incandescent that uses the Halogen cycle, heat is essential in order to maintain the cycle. On the other hand, in a semiconductor, heat generated at the junction is destructive to the device. Just like the processor in your computer, the heat generated at the LED junction must be removed, usually by conduction from the junction to the body of the light which acts as a heat sink. Convection, or radiation is an inferior way to draw the heat from the junction to the heat sink. I think I might have just repeated what shiftd said, anyway, he's correct. Conduction not convection.