Quartz Metal Halide HID Bulb, Bulb Base Type Medium Screw (E26), Bulb Dia. 2 1/8 in, Bulb Housing Glass/Metal, Bulb Shape BD17, Color Rendering Index 65, Color Temperature 4300K, Lumens 14,000 lm, Light Technology Metal Halide, Overall Length 5 3/8 in, Shatter-Resistant No, Voltage Not Applicable, Watts 150 W, Bulb Beam Angle Not Applicable, Bulb Finish Clear, Rated Life 15,000 hr, ANSI Code M102, Dimmable No, For Enclosed Fixtures Yes, Bulb Operating Position Universal Burning