[QUOTE=Kush Over]Well, if you're looking to produce optimum growing conditions, you'll follow Mother Nature's example with the Earth-Sun distance. I myself use several thousand lumens per square foot, and I can still see room for improvement.

Cannabis requires a lot of light -- as much as we can provide. This means that we'd need to replicate the environmental conditions seen outdoors -- 10,000 footcandles/lumens per square foot on a sunny day. Three thousand, like what is suggested on some cannabis cultivation sites, is minimal and typically produces lower yielding plants of sometimes questionable quality [ i.e.: less dense buds ].

And a 4' x 4' SCRoG/SoG space under a 1000w HPS/MH isn't unheard of, even in cabinet grows. The key is ventilation, which includes good intake and definitely good exhaust, especially around the light.

Air-cooled hoods, anyone?[/QUOTE]



No need to be a smartass! Sorry I asked the fuckin question. I figured that is how folks learned to grow on this forum. Maybe I should have started by posting "What do I need to know" and skipped the 3 weeks of reading I have done. In the future, I will make sure I ask as few questions as possible. Please, accept my apology.

And, by the way, I am familiar with air cooled hoods, but I was NOT aware with ventilation and fresh air you could keep temps low enough to use that many lumens per sq. ft. A legit question I thought, but what the fuck do I know?


b0nger