Light Efficient Design Universal LED retrofit lamp has a power rating of 9-Watts and voltage rating from 120 to 277-Volts AC. The lamp has polycarbonate construction with aluminum heat sink/back support. It incorporates PL tubular frosted lamp and 4-pin G24q base for convenient connections. Lamp delivers cool white light output of 911.4-Lumens with 3500K color temperature and 81.2 CRI. It has power factor of 0.928 at 277-Volts. The lamp measures 6.889-Inch x 1.338-Inch. This non-dimmable lamp has an average life of 25000+ Hours and disperses light up to a beam angle of 120-Degrees. This lamp has 26-Watt CFL equivalent wattage. It is ideal for lobbies, classrooms, corridors, offices and hospitals applications. This lamp is compatible with 13/18/26W electronic ballast. The LED retrofit lamp meets UL 1993, 1598C, cULus and FCC standards.