Incandescent Bulb, Bulb Base Type Miniature Screw (E10), Bulb Housing Glass, Bulb Shape T3, Bulb Finish Clear, Color Rendering Index Not Applicable, Color Temperature 2400K, Lumens 42 lm, Light Technology Incandescent, Shatter- No, Trade Number 1477, Voltage 24V AC, Watts 4.08 W, Bulb Beam Angle Not Applicable, Rated Life 250 hr, Dimmable No, For Enclosed Fixtures No, Three-Way No, Light Color White, Indoor/Outdoor Usage Indoor Only, Overall Length 1 3/16 in