I used to grow Serious Seeds bubblegum under a 150. Two clones, scrog style, in a small hollowed out dresser (something like 24" x 16" footprint with about 36" useable height on the inside), and consistently averaged about 4 ounces. The lowest yield I ever got out of that cab was 3.7 ounces, and that was because I was going through a heatwave at the time. I almost always always got just about exactly 2 ounces per clone.
Now, it was a high yielding pheno, so that helped me out of course, but I didn't even fill up the entire screen, ever, so if I really tried I could have gotten probably 4.5 ounces easy. It's pretty easy to get .75 gram per watt with a 150w as long as you keep the light close, and scrog that shit.
Now, it was a high yielding pheno, so that helped me out of course, but I didn't even fill up the entire screen, ever, so if I really tried I could have gotten probably 4.5 ounces easy. It's pretty easy to get .75 gram per watt with a 150w as long as you keep the light close, and scrog that shit.