Yield?

what would one 9'' plant bud roughly? under 2 100-watt and 2 150 watt cfl full reflectivity please help

well that depends on strain but thats plenty of light, so i would guess 8 grams dry..

ouch i have a grow box 3ft tall by 4 1/2 long how big u think i could go bout 16''-18'' prolly better, i have three plants im hoping female Brain Candy
NYC Desiel
Burmese
Cotton candy mixed

with them four lights and your box i would top or lst that little lady and do a scrog you can get a good ounce or more if you do it right

I got just over 16 grams off mine with a single "dual-spectrum 125w grow light" - with more light you'll get more bud, and you'll have more light than me...just bear my results in mind