How much yield could I expect?

[KIMJONGIL]

Can you provide us with the size of the closet you are wanting to grow in, perhaps a picture or two? You can get some 23w CFL's from walmart for cheap and some Y adapters and easily add more CFL's for very cheap.
GTD

The closet is maybe two feet wide and deep, and more than 6 feet tall.

I know bulbs aren't very expensive. I'm more worried about power consumption, actually.

[VuhnillaGorilla]

finally someone states a number. thanks man. Gives me a frame of reference.

yes it gives you a time frame but bro havnt you listened. your gunna wait 5 months for 15g's of green, and thats not saying its even any good. go get yourself a few CFL's and do this the right way. dont worry about power consumption the CFLs are pretty muhc the poor mans grow light becsue they dont use as much power, but still give off enough light if you use 3-4 of them just tryin to help holmes :rastasmoke: