Homebox XL + 400 watt light

will a 400 watt light be enough light for a 3x3 table in the Homebox XL 3.9x3.9? Or will i get bigger yields with a 600 watt light

Go with the 600, yes you'll get a better yield. A 400 is better suited in the Homebox L(3.3'x3.3'), which is what I have. I'm running a 600W light if that tells you anything.

cra8z13 how much do you yield from you setup

My first go-round didn't yield much, about 5oz. I pretty much lost half my crop due to numerous noob mistakes. My current grow is almost finished. I'm hoping to do 8oz. I plan to double that for my next grow. Eventually I'd like to clear 2 pounds. Until then, I'm just happy to have plenty of nearly free smoke.