Ok manns, thanks for input..to elaborate my 600w hps power, i have 4 70w hps, and 2 150w hps, all covering my 2 plants, that were vegged for 2 months, they are in their 4 week of bloom....i dont have 600w, cas im missing 20 w :o, but i also got one fluro rack in there that is 112 w, one bulb...