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Building a low budget light that can grow with my needs. My main goal is an even 500+ par across a 3x3 tent. Also wanted it as cheap and as efficient as possible. I came across a deal on some qb288 boards for $13 each shipped to my door. The boards are 3000k with 660 epistar reds. The leds are...

Was not happy with the spread of my qb288 build for my 2x4 grow box build. Picked up a dozen of the 3k strips to experiment with and this is what I came up with. Running 8 strips with a hlg240h48a. Will run from 104w up to 290w. Took par readings at 12” in the center. 104w = 334 par, 290w =...