Quartz Lamp, Fostoria, Size- 3/8 IN, 277 V, Frequency Rating- 50/60 HZ, 1600 WTT, Style- Coiled Element with Sealed Porcelain End Caps, Insert Length- 19-11/16 IN, Housing Quartz. For Use With 222/223 Mul-T-Mount Electric Infrared Heater, MM-24A Mitey Midget Electric Infrared Heater