That would be just fine but remember that that link was for just the bulb and not the whole light. To run a 400 watt HPS you need ballast. Youll be lookin at spendin around $175 for a cheap unit.

Laterz
Sativagrowin Reviewed by Sativagrowin on . CFL Closet Grow. Alright me and a friend are attempting a closet grow using CFL light bulbs. The closet is 30in wide 24in deep and the box is going to be 4ft high. Initially we plan to grow 5-10 plants at least until flowering stage to distinguish which are male and female then weed them out depending on space. My question is as far as the lighting goes how many watts are necessary for such a small growing space. Right now we have two CFL bulbs one being 20w(1200 lumens) and the other 26w(1600 lumens). We were Rating: 5