I bought one of those hydrofarm light/reflector, and I have some seriously dense veg going on, at 4.5 weeks (in soil) they measure 10" and have canopies nearly as wide as they are tall, and internodal growth that I would not have believed possible without MH light. Nice box dude, best of luck with it's maiden voyage. BUT be careful when installing of removing the bulb in that thing, grip it as close to the socket as you can, as the plastic ballast is two pieces glued together, if it does come apart, superglue works fine.