ok, just looked at a chart that shows peak chlorophyl-a absorption at about 430 and 660 nm, peak chlorophyl-b at about 470-480 nm, and peak carotenoid absorption at about 460 and 500 nm. It seems that the lights I'm considering on purchasing do not meet the chlorophyl-a absorption levels, as the level of absorption dropped significantly if the wavelength isn't spot on. Never mind that I haven't the slightest clue what these terms mean, I only hear that these are very important variables to consider. That said, shopping for the right LED light is definitely complicated, especially when all I want to do is grow some nice plants.

There is a common saying I've heard said many times around these forums, and it goes something like this: too much love can kill a plant - Keep it simple stupid. Perhaps I'm complicating things here...if so, I apologize, but I seem to be falling a victim to clever propaganda schemes fabricated by manufacturers who really don't care so much about providing lights that can grow healthy plants and are bent on making the big dolla.

I know, that sounds like an excuse. I'll dig up some more learnin before i blame anybody....but if you've got suggestions i'm listening. ciao.