Quartz Metal Halide HID Bulb, Bulb Base Type Medium Screw (E26), Bulb Dia. 2 1/10 in, Bulb Housing Glass, Bulb Shape ED17, Color Rendering Index 75, Color Temperature 3000K, Lumens 8,500 lm, Light Technology Metal Halide, Overall Length 5 3/8 in, Shatter- No, Voltage 100V, Watts 100 W, Bulb Beam Angle 360 Degrees , Bulb Finish Clear, Rated Life 15,000 hr, ANSI Code M90/O, Dimmable No, For Enclosed Fixtures Yes, Bulb Operating Position Universal Burning, Standards