Used a Mars Hydro TS 600 in a 2x2 with 2 gallon pots. Got 50 grams off 2 plants, one plant yielded 30grams and the other 17. Still have to trim the Purple Kush, it looks around an ounce.
Pretty happy with what I got. Feel like I could have gotten more if there wasn't slight overcrowding, I didnt...