[oldopelguy]

Originally Posted by Redskinsjbs I think that you need to use White LEDS in the colored lenses. If you think about it, there are a number of wavelengths of light that are being emitted by the LED. If you use a filter that filters out most wavelengths of light except for a chosen few (Like a lens) the light gets dimmer Now visualize that the LEDs have one range of frequencies, and the lenses have a separate range; only where the two ranges overlap will the light come through the lens. This will make the light very dim. I think that someone should try these lights with white LEDs. I can't right now because my car doesn't operate properly yet, but I think that it should work. The bulbs in the car are not colored, so why should the LEDs be? That is my two cents, I hope that the comment isn't on an outdated thread.

Not outdated, but already discussed and proven wrong previously in the thread.

Let's say and LED puts out 5000 lumens of light output. If you use a red LED and filter it through a red lens you might lose 20% but you would still have 4000 lumens of light output. Now if you use a white LED nd filter it through a red lens you lose all the other wavelenths of output and would be hard pressed to get 20% through the lens, so now you only have 1000 lumens of light. All that extra light output is turned into heat, which would kill expensive LEDs, and in order to have the same light output the white LED would have to be several times brighter than the red one.