How Much?

no they are in my closet the are set on 20 hours light right now(flur lights 2 2ft 2 tube 40w each) and then when it is flowering season it will be set at 12/12 with three 75w grow lights that go in these things they look like this... they get water twice a day.. there is a fan on when the light is on... and the temp stays around 75-80 and then at night drops to 60-75... and they have 19-6-12 fert on them... they are in three 8" pot that 8" in dia....

how much what?

how much weed will they yield

Did I miss the question?

hahaha

you made the same post 4 times....chillax hahahaha

smoke some and chill a while you will get answers

stay high brother. haha. how much all depends on the color of you thumb. i know nothing about cfls. so to be honest im really not the guy to talk too. i only know when using hps. u should be getting around a pound per 1000watts

yep i agree a g a watt is good but there are other things to consider such as nutes,c02,heat,type of plant and so on.