i have 3 1000 watters and a 400 in my 8 x 12' room over 16 plants, 20 next month... inline cool tubes for the 1000's, when it gets hot out i'll blow one of my 440cfm fans thru 2 of the lights,
only 1 room, veg n flower, but they're one hell of a light system!! digital ballasts, either 120 or...