Here's another one i have seen five pound plants off of one light. but you you gotta grow trees with aero or dwc etc. this aint no ebb and flow or drip system with cubes were talking here. http://www.rollitup.org/general-marijuana-growing/458768-professor-marijuanas-45-day-grow-2.html Now, should I trust people posting this on a forum for marijuana? Or a forum for stocks?