Miniature Incandescent Bulb, Trade Number 939, Bulb Shape T5, Bulb Base Type Glass Wedge (W2.1x9.5d), 6 Voltage, Emergency, 5.4 Watts, 900mA Bulb Amps, Average Bulb Life 50 hr., 68 Lumens, Max. Overall Bulb Length 1-1/2 In., Light Bulb Dia. 5/8 In., Bulb Housing Glass, Indoor Only, Standards Meets 2012 Lighting Legislation Energy, Package Quantity 10