With a 600w if you do good you should be expecting 1/2 grams per watt of light. So 300 grams. Some nutrients and a addon or two wil get you there. That's a good size light for your space. i have a 1000w in a 4x5x8. over kill I know but just got a lumateck dial a watt ballast. So I maybe will turn it down to 600 and see watt happens. If its below a pound it's back to overkill.
LOC NAR on probation Reviewed by LOC NAR on probation on . Beginner Yields??? I had done one grow before, small closet grow with 6 cfl's and two girls. Ended up with a whopping 14grams dry... yeah not much at all although it was a fun experience. *this was a natural grow, no nutes* I am considering trying this again for numerous reasons (chronic PAINNNNN, don't want to buy off the streets ..). But I don't want to "cheap" out as much as I did with the cfl's. What I'm looking at: 600w HPS and a MH Grow Tent OR Build One??? I have about 5feet(60") x 3feet(40") x Rating: 5