Metal Halide HID Bulb Bulb Base Type Mogul Screw (E39) Bulb Dia 3 1/2 in Bulb Housing Glass Bulb Shape ED28 Color Rendering Index 65 Color Temperature 4000K Lumens 13 700 lm Light Technology Metal Halide Overall Length 8 1/4 in Shatter-Resistant Yes Voltage 120-277V Watts 250 W Bulb Beam Angle 360 Degrees Bulb Finish Clear Rated Life 10 000 hr ANSI Code M58 Dimmable No For Enclosed Fixtures No Bulb Operating Position Vertical Base Up +/-15 Degrees Rough Service No