Incandescent Bulb Bulb Base Type Single Contact Bayonet (BA15s) Bulb Housing Glass Bulb Shape S11 Bulb Finish Clear Color Rendering Index Not Applicable Color Temperature 2999K Lumens 250 lm Light Technology Incandescent Shatter-Resistant No Trade Number 4RZY6 Voltage 10V AC Watts 18 W Bulb Beam Angle Not Applicable Rated Life 2 000 hr Dimmable No For Enclosed Fixtures No Three-Way No Light Color White Rough Service No Indoor/Outdoor Usage Indoor Only Overall Length 2 3/8 in