50 watts per sq. ft. of floor space.100 watts if you are using co2.As for lights, use HPS or MH .CFLs are a good choice also.Can't guess your yield.1 gram per watt is doable however.
Not by someone who has to ask this question, however. 1g/watt is considered a benchmark for solid, experienced growers, and for HID lighting not CFL. By that rule of thumb the OP will need at least 1700 total watts of HID.
give me more info, such as what height your growing to, methods, nutes, strain, etc that question is immpossible to accurately answer without more info
yeah i agree with toastybizz, 1gram per watt is really doing something. and i wouldnt really expect 4o's per plant with your first run.how much room do you have to work with? theres so many options that with the info you provided cant really be answered.if i were you i would just get a 400hps and run a few rounds and upgrade from there. but goodluck dude
ask me whatever you would need to know. I have enough room, a whole garage. splitting it between two rooms
As far as a really rough estimate goes, I'd shoot for 2 x 1000w HPS with 8 plants under each. Since it seems you are running 2 rooms, I'd just do 2 separate rooms running 8 - 10 plants each. As I said though, this is a very rough estimate, but with some experience you should be able to pull your desired 60oz (30oz per room) using a 1000w HPS in each room.
Expect curve balls my friend this is not a simple hobbie its not just throwing a seed in some dirt I'd set my first goal at keeping something alive...