So I’m switching from a 10x10 tent with a 1000 watt MH/HPS to a 3x3 and one, soon to be two, 4x4’s. I played with the 3x3 and a Mars Hydro TS1000 and am VERY happy with the results for only using 150 watts. Now the 4x4’s will be another inexpensive test of lights with 2 Sunraise QB-2000’s in each 4x4. I didn’t want to invest $1000’s in pro lighting until I learned how to operate cheaper ones (distances, power levels, etc.). These were both recommended by a fellow grower that I know has good results/yields. Any feed back you could give me on them would be greatly appreciated.