newworldicon
Well-Known Member
I think you would do MUCH better by getting several lesser power lights than 1 500water. My choice for a 4x4 would be 4x180W Spectras. If you can't afford it, go for the 4x100W UFO Spectras. This will give you the best overall coverage, interlacing and spectrum mixing from multiple lights and you can adjust the heights according to your canopy. I would go for this 4 light setup over the 2x290W Spectras because a single 290W covers a 3x3, so two of them side by side will not perfectly cover a 4x4 - a 1x4 area will not receive optimal light. Or if you want to save some more cash go with the 4x240 Blackstars to cover the 4x4.
I agree that more smaller panels would be better core coverage over a 4x4 space until I or any others with larger single panels can kick out a great grow with one panel.