GE LIGHTING 320W, ED28 Metal Halide HID Light Bulb
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 Pulse Arc Metal Halide HID Bulb, Bulb Base Type Mogul Screw (EX39), Bulb Dia..