Miniature Incandescent Bulb, Trade Number 6PSB, Bulb Shape T2, Bulb Base Type Tel. Slide No. 5, 6 Voltage, Telephone, 0. 8 Watts, Average Bulb Life 5000 hr. , Light Color Clear, Max. Overall Bulb Length 1-7/64 In. , Light Bulb Dia. 1/4 In. , Bulb Housing Glass, Indoor Only, Standards Meets 2012 Lighting Legislation Energy, Package Quantity 10