Incandescent Bulb Bulb Base Type Double Contact Bayonet (BA15d) Bulb Housing Glass Bulb Shape T6-1/2 Bulb Finish Clear Color Temperature 2800K Lumens 740 lm Light Technology Incandescent Shatter-Resistant No Trade Number 20T6 1/2 Voltage 120V AC Watts 20 W Bulb Beam Angle 180 Degrees Rated Life 5 000 hr Dimmable Yes For Enclosed Fixtures No Three-Way No Light Color White Indoor/Outdoor Usage Indoor Only Overall Length 5 5/8 in