Incandescent Bulb, Bulb Base Type Telephone Slide No. 5, Bulb Housing Glass, Bulb Shape T2, Light Technology Incandescent, Trade Number 28PSB, Voltage 28V AC, Watts 1.12 W, Rated Life 5,000 hr, Dimmable No, For Enclosed Fixtures No, Three-Way No, Light Color White, Indoor/Outdoor Usage Indoor Only, Standards Meets 2012 Lighting Legislation Energy Standards