Hey folks, I got an amazing deal on a used 1000W HPS system, 48" reflector, MH/HPS magnetic ballast and 2 HPS bulbs. I'm thinking that 1000W is a little much for 2 plants, which is all I ever have growing, can I use a 400 or 600 bulb with the 1000W ballast? Or is that a no no?
Also how much...