So almost a lb that's good that can be done in a 3x3. If you put 2 400w hps or led in a 4x8 you will get double the yeild. I ran 900w in a 3x8 pulled 2 Pounds. If I decided to run 450 on a mover in 2 different rooms I would be using twice the space and I would still get 2 pounds maybe an ounce or 2 more but the buds would also be smallerHave u ran lights with a mover I just pulled an gth#1 mother from this tent that was scrog pulled almost 6 ounces off it cut a purple star 2 weeks before and pulled just under a qp and I cut 3 501 og plants that had 2 zips each