Incandescent Bulb, Bulb Base Type Glass Wedge (W2.1x4.9d), Bulb Housing Glass, Bulb Shape T5, Bulb Finish Clear, Color Rendering Index 100, Color Temperature 2700K, Lumens 40 lm, Light Technology Incandescent, Shatter- No, Trade Number BC4T5/TP/12/4, Voltage 12V AC, Watts 4 W, Bulb Beam Angle 360 Degrees , Rated Life 300 hr, Dimmable No, For Enclosed Fixtures No, Three-Way No, Light Color White, Rough Service No, ANSI Code C78.23, Indoor/Outdoor Usage Indoor Only