To be honest with you I dont know the exact dimensions but its about 3'wide x 3'deep and about 4' 1/2 tall. The AC runs at 70 all day and there is one fan blowing directly at it. I havent encountered any issues with the heat and the bulb. There is great air circulation thru out the room.

Mona
m4o2n0a Reviewed by m4o2n0a on . ??$119.00 + S/H 400Watt HPS grow light from EBAY?? Has any one bought this light from HTGSUPPLY.COM for only $119.00? Any problems with heat? Quality? I am concerned with heat mainly, My CLOSET is 5.5(h) 2(w) & 5(h) roughly. I can add fans to blow on the Ballast and in the closet, but I woder if I will need a EXHAUST fan of Rating: 5