Incandescent Bulb, Bulb Base Type Miniature Bayonet (BA9s), Bulb Housing Glass, Bulb Shape T3-1/4, Bulb Finish Clear, Color Rendering Index Not Applicable, Color Temperature 2400K, Lumens 6 lm, Light Technology Incandescent, Shatter- No, Trade Number 47, Voltage 6.3V AC, Watts 0.945 W, Bulb Beam Angle Not Applicable, Rated Life 3,000 hr, Dimmable No, For Enclosed Fixtures No, Three-Way No, Light Color White, Indoor/Outdoor Usage Indoor Only, Overall Length 1 3/16 in