Thanks, Sal. I tend to go a bit overboard when it comes to light myself. Whenever someone asks "Should I add _____?" I always think the more the merrier.

Any thoughts on red or blue tinted reflectors? A lot of lights CFLs and tubes even my highdollar colored tubes have a green spike in their output. My understanding is that if the said spike is too low in the spectrum could keep PAD from working. A red or blue (depending on the application) anodized or tinted reflector could eat up half of the green spike of the offending bulb and still reflect most of the red or blue light that you want to keep.

Been thinking about this for HID lights. Hence, the title of the thread. During daytime lighting it shouldn't matter any. It could still apply to say, vegging under HPS with a blue reflector.

I'm also considering coating reflectors and maybe walls with titanium dioxide for odor control. It's the stuff they use on "Odor Eating" CFL's. $5 a pound for this stuff from make-up/soap suppliers on the net. It's apparently safe enough to use in hippie soap and that powdered mineral make up.
scott9116 Reviewed by scott9116 on . HID Time factor manipulation I've been following the UV-B thread for a while. Cool stuff. Makes me want to get back into growing. But, what really gets me going is the Martian stuff and the light time factors for increasing tric production. I seems to me that, unless you've got a ton of cash for LED's or have alot invested in HPS setups already, it's really hard to get down to the magic 1.8 and decent yield. However, I have some ideas to get closer: Fluorescent Supplemental Lighting: http://kinoflow.com has HO Rating: 5