A post of urs about light transition techniques,u said 2.25 per light. Oz. or lbs,what size lights u using? I use 2 600hps, yield about 6-8oz/light in a 4x8 tent. Not unheard of to get 1lb/600wt, without tent. With a 1000wt 1lb is definitely possible. I use a technique called DWC-HHT. Youtube: Mr Big DWC, and The 1lb Club.