Maybe I didnt catch all this but you got a 600 watter in a space 3x2x6. Think the 600 will be plenty o light for the space if you can cool it. Is the ballast outside the closet, that helps a shitload. Look I just went from a 250 watt w/ built in ballast to an air cooled 400 in a closet 5x2x8 and holy shit its cooler than the 250 with less fan. I mean its hooked up to a 150 cfm exhausting out of closet with a 100cfm fan at top o closet that pulls air out of closet thats filtered through a can filter. The temps stay in the mid 70's with the aircooled lamp
where as with the 250 not air cooled I had a hard time keeping it lower than 82 degrees. The exaust fans are roughly 80$ for smaller one and 100$ for bigger one. Even if you dont use a cool tube, which mine is not air cooled seemed to work great for me. I can keeep the light hella closer now. Oh yeah and I got a 16 inch oscillatin stand fan in there that runs on low 24/7, it's quiet as hell.

Good Luck
MULLETMAN Reviewed by MULLETMAN on . heat issues hi people , i've been reading these forums for the past 6 weeks or so to take in as much info into growing as i can. well this is my problem i have a 600w hps with ballast and my cabnet i am growing in is 3ft x 2ft x 6ft. i have set up a excust fan a fan blowing air in and have a desktop fan inside, so just for a trial run i put the 600w in there with a temp gage and the temps where around the 90 degree mark and i know this is well to high. so my questions are. can i buy a cooltube Rating: 5