300 ma @ 12 volts is 3.6 watts That's about 12 btu's. That also assumes 100% of the output of the led is heat (You can buy an infrared one btw).
I don't think that amount of heat is going to do anything for you. On the other hand an 1156 incandescent does 22 watts or about 75 btu's and it does a LOT of heat.
profdant139 wrote:
I would power the LED by tapping into my 12 volt system, with a switch. It would not draw much power -- maybe 300 milliamps. The only trick would be to remember to shut it off in the morning!!
