HID lights produce 3.4 BTUs per watt.
So that 400 is theoretically throwing about 1,360 B.T.U.'s, that covers the bulb and then theres the heat from the ballast to factor too. Nothing like running a space heater indoors in the summer,eh.
Ya looks like ac is the way im going to have to go..thanks i didnt know an ac was so cheap but what the hell do i care i just need it for my babies. Which 7 have germinated and 4 have sprouted. Growing some bogbubble!