Metal Halide HID Bulb Bulb Base Type Mogul Screw (E39) Bulb Dia 4 5/8 in Bulb Housing Glass Bulb Shape ED37 Color Rendering Index 65 Color Temperature 4000K Lumens 40 000 lm Light Technology Metal Halide Overall Length 11 1/2 in Shatter-Resistant No Voltage 150V Watts 400 W Bulb Beam Angle 360 Degrees Bulb Finish Clear Rated Life 20 000 hr ANSI Code M155/M135/E Dimmable No For Enclosed Fixtures Yes Bulb Operating Position Universal Burning