Incandescent Bulb, Bulb Base Type Telephone Slide No. 5, Bulb Housing Glass, Bulb Shape T2, Bulb Finish Clear, Color Rendering Index Not Applicable, Color Temperature 2400K, Lumens Not Applicable, Light Technology Incandescent, Shatter- No, Trade Number 48PSB, Voltage 48V AC, Watts 2.4 W, Bulb Beam Angle Not Applicable, Rated Life 10,000 hr, Dimmable No, For Enclosed Fixtures No, Three-Way No, Light Color White, Indoor/Outdoor Usage Indoor Only, Overall Length 1 7/64 in