Incandescent Bulb, Bulb Base Type Miniature Bayonet (BA9s), Bulb Housing Glass, Bulb Shape G4-1/2, Bulb Finish Clear, Color Rendering Index 100, Color Temperature 2402K, Lumens 25 lm, Light Technology Incandescent, Shatter- No, Trade Number 55, Voltage 7V AC, Watts 2.87 W, Bulb Beam Angle Not Applicable, Rated Life 500 hr, Dimmable No, For Enclosed Fixtures No, Three-Way No, Light Color White, Indoor/Outdoor Usage Indoor Only, Overall Length 1 1/16 in