Low Profile Enclosure Heater, Thermostat None, 450 W Watts, Heater Voltage 120V AC, 1 Phase, Height 1 7/8 in, Length 19 1/2 in, Width 2 in, Mounting Dimension 18-3/4 in, Mounting Holes O.C. 5/16 in, Includes Mounting Brackets, Standards UL Recognized E60605