Pail Heater Current Rating 4.6 A Environment Indoor Outdoor For Container Capacity 5 gal For Container Material Type Metal Plastic For Container Type Pails Thermostat Temperature -Maximum 85 Degrees F Thermostat Temperature -Minimum 67 Degrees F Operating Voltage 115V AC Watt Density 5 W/sq in Watts 550 W Drum Diameter - Maximum 12 1/10 in Drum Diameter - Minimum 11 1/10 in Electrical Connection Type 5-15P Plug