02-28-2010, 12:41 PM
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Originally Posted by Angel079
Like Byron just said above the plants ideally need a mixture of lil red higher in blues and some green to balance. That ideal mixture is found in bulbs rated between 5-6500 kelvin. The lower one's are more a yellow-red light if you looked at them while as the far higher one's are more a cold bright blue only.
Ah, I think I just figured it out... the bulbs that have a higher Kelvin rating will look
more blue becuase there will be more intensity in the blue wavelengths (possibly to the point of 'overpowering' the reds/yellows/etc...), while a daylight bulb should have a more 'even' dispersion of power across the color spectrum. I think that may even be why I bought the Aqua-Glo/Sun-Glo combo - the yellow/orange 'peak' of the Sun-Glo filled in the 'valley' between the blue and red spikes in the Aqua-Glo's spectrum. I probably knew this at some point, but over-researched and confused myself...