<a href=showthread.php?s=&postid=9074097#post9074097 target=_blank>Originally posted</a> by TekCat
hahnmeister, thanks for explanation. So, basically it all depends on what type of bulb gets overdriven. Is there an illustration of some sort what happens to different bulbs "on steroids"? (Like: Blue+ gets whiter, etc...)
There is no 'for sure' example. See, some bulbs that have a narrow output and get overdriven but never had the potential to create some other spectrums, so overdriving them doesnt mean you will get anything in particular if there is nothing to begin with of a certain spectrum. Usually, if its a bulb that has a trace amount of a spectrum, then there is enough to have that spectrum boosted.
Heres a good way to put it... light is part of the EM spectrum. Now while boosting the output of that bulb, while you may expect certain spectrums to be boosted, you wouldnt expect, say... the Gamma-Ray portion of the EM spectrum to get boosted, because the potential was never there in the first place for the bulb to make Gamma-Rays.
OTOH, if you have a purple/blue bulb that also happens to have a small green spike, the potential is there for that to be boosted, as the capability to make that green spectrum is there.
The more narrow the output of a bulb is (lots of peaks in specific ranges), the more its 'look' will change as you overdrive it. If you have a bulb that has a very broad and flat output, then the overdriving wont be as noticable.
Blue and Purple (actinic) bulbs that peak at 450 and 420nm look 'whiter' when overdriven. Daylight bulbs, or bulbs with broad and even outputs in a variety of spectrums keep their 'look' much better when overdriven.
