Incandescent Bulb Bulb Base Type Miniature Bayonet (BA9s) Bulb Housing Glass Bulb Shape T3-1/4 Bulb Finish Clear Color Rendering Index 100 Color Temperature 2345K Lumens 38 lm Light Technology Incandescent Shatter-Resistant No Trade Number 1864 Voltage 28V AC Watts 4.76 W Bulb Beam Angle Not Applicable Rated Life 1 500 hr Dimmable No For Enclosed Fixtures No Three-Way No Light Color White Rough Service No Indoor/Outdoor Usage Indoor Only Overall Length 1 3/16 in