Incandescent Bulb Bulb Base Type Glass Wedge (W3x16d) Bulb Housing Glass Bulb Shape T6-1/2 Bulb Finish Clear Color Rendering Index 100 Color Temperature 2767K Lumens 460 lm Light Technology Incandescent Shatter-Resistant No Trade Number 7440 Voltage 12V AC Watts 21 W Bulb Beam Angle Not Applicable Rated Life 300 hr Dimmable No For Enclosed Fixtures No Three-Way No Light Color White Rough Service No Indoor/Outdoor Usage Indoor Only Overall Length 1 3/4 in