I've searched everywhere for an answer....

[headshake]

and I'd be far more concerned about total lumens of light than any color spectrum. Trust me on this one. I've gotten great flowering with just metal halide lights, which don't put out the reds that everyone says you need to get flowers, though the HPS lamps put out even more light than a metal halide--and it's in the "flowering spectrum". But, again, total light will do you more good than limited light in a specific spectrum.

what's good steve? your right that total lumens would be more important than color temp. from what i've read flowering with a MH vs a HPS, same wattage side-by-side is that the MH yield is about 25% less but with better resin production. granted, an HPS is a bit more efficient than a metal halide, but still. these results seem pretty standard.


-shake

headshake Reviewed by headshake on 08-30-2010. I've searched everywhere for an answer.... 1st time grower of anything, I ordered some "blue Mystic" feminized + autoflower seeds to grow inside of a PC grow case. I'm in the 3rd week of flowering. I started the 12/12 light cycle once i noticed some white hairs (pistils) start showing up on my plants, also switched the lights out to the yellow color lights instead of the white colored lights. I'm using 4 of the new energy saver bulbs, can't remember what they are called (CFLs maybe). They're the cheap ones you can buy at walmart, Rating: 5