Quote Originally Posted by lordsoth666
The MV bulb can be as close as 6" from the tops, MV is the coolest running of the HID family, but still if you touch it while running it will burn you. I have gotten overspray from foliar feeding on the bulb before and it didn't blow up or anything like a HPS would. I posted some more info about these lights here: http://boards.cannabis.com/showthread.php?t=7419

I like the color corrected bulb, also called soft white for flowering, the spectrum is better, as it does produce useable light for photosynthesis, just not as much as other HID does, but the UV-B triggers the plant to produce THC as a defence to the UV radiation, or at least that is what I understand from my reading.


L0rdsOth
;have you heard of a SBML lamp? somewhere i'm watching it try to flower up a plant and side light others at the same time. its a self-ballasting 160W grow bulb and hard to find now i heard. about 6-8'' above and about a foot beside the others, and it dont need a reflector.;it used to be one of the best used in the .60's-70's indoor grow bulb is all i'v heard.