All the online calculators say for my 4X4 room, I need 800 watts.

Thats all fine and dandy, but I cannot find a 800 watt system..

I found 400, 600 and 1000..

Is the 600 enough? Or is the 1000 too much?
joewig1980 Reviewed by joewig1980 on . Why is there not a 800 Watt HPS system? I need the appropiate system for a 4x4 room. All the online calculators say for my 4X4 room, I need 800 watts. Thats all fine and dandy, but I cannot find a 800 watt system.. I found 400, 600 and 1000.. Is the 600 enough? Or is the 1000 too much? Rating: 5