iwould just get one 600 for now and see how much heat/light difference taht makes. maybe better to stick with 400s in a confined space. you get a better light footprint, and youcan place the light lower, not to mention longer bulb life and a lower electric bill.
joedirte Reviewed by joedirte on . 2200watt 4x10 sog help please First off a good friend of mine is an old time indoor grower thats been using 3 400watt hps lights in a 4x10 closet and has always grown trees. Today he said its time to change and wants to upgrade to 2 digital 600watters and has a 1000 watter he can use. I have convinced him of doing sog and I have agreed to do the cloning for him.(hes always grown from seed) We were running some numbers and this is what we've come up with. 2200watts/40 sqft = 55 watts sqft He was really low when using Rating: 5