500W 120V 14"L 5/8"od with screw thread terminals

All quartz infrared halogen lamps should avoid fingerprints or oil on the lamp.  Quartz glass under heat conditions will be damaged by vitrification of the glass if the quartz is contaminated.  Use a clean cloth with water or alcohol to clean the lamp.  Special care should always be observed when installing so as to not contaminate the lamp. Quartz heaters must not be operated in the presence of flammable vapors, gases or combustible materials without proper ventilation or other provisions to comply with National Fire Protection Code or other recognized authority. The National Fire Protection Association has made many of its safety codes — such as NFPA 86, the standard for industrial ovens and furnaces, and NFPA 87, the standard for thermal fluid heaters — available for online viewing at no charge.