Posted by big fred on September 07, 2012 at 11:16:36 from (174.21.212.216):
In Reply to: Re: LED Floodlights?? posted by Waltdavies on September 07, 2012 at 09:01:30:
LED lights can run off any voltage greater than the forward voltage of the LED, which is probably around 3.3 VDC for white LEDs. Range is under 2VDC for some infrared, up to about 4VDC for some of the shorter wavelength blue LEDs. White LEDs aren't really white (broad spectrum LED), but instead are a blue LED that's been doped with phosphors that re-radiate yellow, red, green, etc. The re-radiated light from those phosphors combines with the blue from the LED to approximate a broad spectrum white light as seen by our eyes.
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