I think that was the move I should have made with a 250w HPS instead of buying the 400w HPS. I was gonna veg with that bitch til I realized how hit it was. Damn near baked the many seedlings I had in there and it was bout 2 feet above. I'm vegging with CFL's now until I can grab a faster fan to suck the hot air out the cool tube cause them little as muffin fans aint gon do the trick. lolFor that small go with a 250 bro....trust me with a 400 you will be spending more money than you get in buds. It will raise your heat and your bill rather than a 250. look at my grow journal i use one 400 watt for a 3 x 3 tray and it works well but than again the room is big so duno.....but the heat will be alot more than a 250
Dude, I didn't know why I aint think of that move you made with the styrofoam plates.I got a 600 and mine in 2x6x4.