Blue back
Well-Known Member
I'd agree with two separate fixtures for that coverage as well if he can get them in price range.
If not I would personally go 3x3 with a single 315 then get another 315 next run, far better in the long run. He could get a 600hps to run the 4x4 now but it isn't going to yield vastly more as the light distance to get the coverage is going to make the edges suffer anyway.
Funny you mention that. I'm running 1 315 at my personal grow 4 × 4. Will run 2 next time. Even though 1 covered the area fine. But not great. Rock solid nugs just not real big. I'll put pics up when I can.