Pulse Arc Metal Halide HID Bulb Bulb Base Type Mogul Screw (EX39) Bulb Dia 3 1/2 in Bulb Housing Glass/Metal Bulb Shape ED28 Color Rendering Index 70 Color Temperature 3700K Lumens 30 600 lm Light Technology Metal Halide Overall Length 8 1/4 in Shatter-Resistant No Voltage Not Applicable Watts 320 W Bulb Beam Angle Not Applicable Bulb Finish Frosted Rated Life 20 000 hr ANSI Code M132 Dimmable No For Enclosed Fixtures Yes Bulb Operating Position Horizontal +/-15 Degrees