Closet box question

I realize there have been a few posts on here about closet grow boxes but none of which really had an idea of ventilation. What I am trying to make sure is I dont burn the place down putting in too large of a light.

Box is 2'D, 3'1''H, 2'7''W... minus an 1/8th of an inch or two. Now, there will be two fans (one in one out) that move 65cfm of air.

Good enough air flow??


Its sounding like 250W HPS may be my best bet when I get there but would 400W be overkill?

hey dredg,

If you can directly exhaust the light rather than the box, you can use pretty much any light you want.... beacuse you will be taking the heat directly away.. it won't even stay in the box for a second..

and this is especially true if you can brin in cool air from a sourse.. like from under the house.... the crawl space air is almost always cool no matter how hot it is outside!!

love