Attributes . Ventilation Duct Heater/Fan/Light, 4 in Duct Size, 70 CFM Air Flow, 120 V, 12 A, 70 CFM, Incandescent Light, 100 W, 2.5 Sones Sound Level, 14-1/4 in Length, 8-1/4 in Width, 5-3/4 in Height, White, 12.5 lb . Names