well, a good rule is 50w per square foot....so if you have 6 400w lights, you can cover about 48 square feet....that is a lot of space! depending on what type of growing you are doing, you can get alot of plants in that space. You can get at least 1 plant per square ft.

700 grams per plant is really high expectations....that breaks down to 1 lb, 10oz....that's alot of weed! Maybe if it's grown outdoors, but you are not going to get that per plant on an indoor grow. :jointsmile: