I posted this before ... so forgive the repost .
2 ) 96s spaced 24” apart via Sunblasters . But you can do the same without the lamps I added .
I used channel aluminum, L brackets and cut angle for elites to be mounted to. I purposely mounted the hanging points on the outer corners of the channel pieces to reduce flex . Although a short middle brace could be added if desired. You could mount the driver in the between point also.
The spacing is fine at 24” and still get good overlap from them , as I based space as 2x2 quadrants for each.
Material cost is nominal. The heatsink are pretapped on sides , so it’s a natural fit.
So
IF .... I were to build something
new for 3x3 I would build a 24” x 24” square version.
With obvious dimming via a remote potentiometer on frame. The passive cooling is quite good but I run at reserved power ( 70% due to plant stress ) so putting the dial to 11 may not be such a good thing. It is STILL surprising that people want to make 1200w QB rigs for enclosed grows. That is absolutely insane and everybody learns very quickly that less is more with these boards.
No need for balls to the wall max with these , however ..... say that same build I described were to hang in a larger tent or open space , then you got the power on tap to play with.
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