Electric Infrared Tubular Heater Element For Use With Mfr No FFH-512A Overall Length 19 1/2 in Diameter 3/8 in Connection Type 5-1/2 in Pigtail Voltage 120V AC Wattage Output 550 W Frosted Fits Heater Type Fostoria s Electric Infrared Heater Series Heater Mounting Position Horizontal Burn Voltage Regulation 0.02 Amperage 4.6 A Nickel Chromium Alloy Includes 3 in Wire Leads Insulation Sleeve