CLF's are better and more efficient than inc. old school. They cost a little more but even out in the end. Blue for veg and Red for flowers most definitely. The blue that is similar to the daylight or that sheen on the concrete you see at about noon. Red like when the sun sets and has that orange kind of reddish glow. I don't know about spectrum analysis but check out pics of HID's in action like a Metal Halide and a HPS. Try to get as close to that spectrum as possible.
Aspire420 Reviewed by Aspire420 on . Grow lights for veg, and for flowering Would it be better to use a blue spectrum for growing and a red spectrum for flowering, ive been reading and some people say there are bad thigns about it ex. something about it not bulking up from lack of spectrum and i was thinking about making a grow light setup and the blue ones would swap out for red ones for flowering. The red/blue lights for flowering/veg would be four hanging evenly around the plant and then probably a 300 watt incadesecent, the incadescent for the lumen output Rating: 5