Electric Infrared Heater Panel Emitter, Overall Length 48 in, Overall Width 3 in, Overall Depth 3 in, Voltage 480V AC, Wattage Output 3, 150 W, For Use With CH-448-1A, CH-448-1C, Mfr. No. MR-448-1, Amperage 6.56A, 1 Phase, Material Black Quartz Cloth, Cement Bond, Refractory Board and Resistance Wire, Steel Frame, Includes Element Panel Assembly, Heater Housing Guard, Mounting Hardware, Manufacturers Warranty Length 1 yr, Standards ETL US & Canada