I'm only running 20 amps through the controller. The other 20 amp line is separate and on a GFI. There are 2 separate 20 amp lines to the closet. No I don't have that many in there yet, just the 2 600w. They are covering 3'-0'x5'8" and the reflectors take up most of that. The light mover seems almost like a waste now though. But it will still help get to parts of the plant that would get very little if I didn't have it. I was thinking about making the shelf wider though, another 6" maybe. I've heard that story about the cops and the bill, but have also heard that it was BS. Probably were the ones that started it. My bill is not to bad because I don't have a washer, dryer or dishwasher and the hot water is gas. The wife wants a washer but I keep blowing her off to work on the grow. I even have a washer here but no were to hook it up. 1/2 gallon should be fine. You can still grow a pretty good size plant in that. Sounds like a good size for what you want though. Mine are only 1 gallon pots and are not full. Over 3/4 full though. I think this type of reflector is better at reflecting the light in a more concentrated area than the cooltubes are. That's why I went with this style. Not that the cooltubes don't have their place though. Their size is a big plus.