Incandescent Bulb, Bulb Base Type Double Contact Index (BAY15d), Bulb Housing Glass, Bulb Shape S8, Bulb Finish Clear, Lumens 38 lm, 402 lm, Light Technology Incandescent, Shatter- No, Trade Number 198, Voltage 14V AC, Watts 9.52 W, 28.8 W, Rated Life 5,000 hr, Dimmable No, For Enclosed Fixtures No, Three-Way No, Light Color White, Rough Service No, Indoor/Outdoor Usage Indoor Only, Overall Length 2 in, Light Distribution General