Incandescent Bulb, Bulb Base Type Single Contact Miniature Flanged (P13.5s), Bulb Housing Glass, Bulb Shape B3-1/2, Bulb Finish Clear, Color Rendering Index Not Applicable, Color Temperature 2700K, Lumens 52 lm, Light Technology Incandescent, Shatter- No, Trade Number KPR113, Voltage 4.8V AC, Watts 3.6 W, Bulb Beam Angle Not Applicable, Rated Life 20 hr, Dimmable No, For Enclosed Fixtures No, Three-Way No, Light Color White, Indoor/Outdoor Usage Indoor Only, Overall Length 1 1/4 in