View Single Post
Old 02-15-2008, 12:48 PM   #8 (permalink)
Master EcoModder
metroschultz's Avatar
Join Date: Dec 2007
Location: Norfolk, Va. USA
Posts: 869

CPT SLO - '93 GEO Metro plainjane
90 day: 53.91 mpg (US)

SilverHairBeauty - '01 Toyota Avalon XL
90 day: 24.06 mpg (US)
Thanks: 14
Thanked 33 Times in 28 Posts
Send a message via AIM to metroschultz
Originally Posted by Ryland View Post
I might just go with those 800 lumen LEDs then for my citicar if I can get a converter box that will drop the voltage down from the cars 48v battery, and I would be really worried about how bright they are with a 40mph top speed and the car being mostly used in town, and there are street lights most places.
the real draw back is that unlike an incondecent bulb that radiates heat with it's light, the LED produces most of it's heat inside the chip, so a heat sink really is needed, altho this could be a good place for a heat pipe, and i planed out well that heat could be used for things like defrosting your windows!
I work nights (3p -1a).
I use a flashlight often.
I just got a light that uses led tech and is brighter than my older three c cell MagLight.
It faces the led rearward into a highly polished parabolic reflector.
Perhaps you can do that with these LEDs?
Just a thought.

When you are courting a nice girl an hour seems like a second. When you sit on a red-hot cinder a second seems like an hour. That's relativity.
Albert Einstein
  Reply With Quote