Quote Originally Posted by ShadowMan420
A good rule of thumb is that if you keep it to one 1,000 watt per bedroom in the house it's pretty much unnoticable. Seeing as your going to using a 400w anyways I wouldn't worry about it at all, I don't and thats what I have....
Yes, I plan to use 400w always for flower but maybe 400w's of MH or 250w's for vegitative.