Metal Halide HID Bulb Bulb Base Type Mogul Screw (E39) Bulb Dia 4 5/8 in Bulb Housing Glass/Metal Bulb Shape BT37 Color Rendering Index 65 Color Temperature 3700K Lumens 115 000 lm Light Technology Metal Halide Overall Length 11 1/2 in Shatter-Resistant No Voltage Not Applicable Watts 1 000 W Bulb Beam Angle Not Applicable Bulb Finish Clear Rated Life 12 000 hr ANSI Code M47 Dimmable No For Enclosed Fixtures Yes Bulb Operating Position Universal Burning