[scottmcleod]

(07-13-2010, 08:44 PM)Focus man. Focus. Wrote: I think if you are using a red LED bulb in a red housing you will not get that much light output as you would if you used a white bulb in the same location. The red of the bulb cancels out the red of the reflector and you will not recieve the correct transmission of light. Also the more LED's on the bulb the better. Have you noticed a "Hyper Flash" in the signals? Make sure they have a built in diode to correct that situation.

Other way around :-P I was thinking the same thing, and then I remembered "hey, it's no different than the gels I use in theatre."

To simplify it:
http://solar.physics.montana.edu/ypop/Cl...ilter.html

Or even right from the horse's mouth:
http://www.superbrightleds.com/cgi-bin/s...-notes.htm

Red filters let through red light only. (the rest of the spectrum is blocked out, in one form or another.)

So actually, a red filter would let through more light from a RED led, rather than a WHITE led of the same brightness.

As far as hyperflash, didn't notice anything on the EUROLITE bulbs yet. I'm planning on re-testing this morning and taking photos.