Cool, thanks. What I think I would like to do is run 6 75w boards for one "fixture" using the 240's for veg and then use the two 320's to build a fixture using 8 of the 75w boards, possibly the 132's, to use for flower. That would give me 450w of veg and 600w of flower lighting. I also considered just making one monster fixture using all ballast to give around 1k watts over a 4 x 4. Currently I can legally grow 12 plants, with 6 being in flower. My space is a single area so if I want to run perpetual then I have to do auto flowers. Two fixtures would be better if running perpetual, but if not one huge, but dimmable, fixture would do just as well.