Metal Halide HID Bulb, Bulb Base Type Mogul Screw (E39), Bulb Dia.
W,OBBLE LIGHT 175W, BT28 Metal Halide HID Light Bulb 4 1/2 in, Bulb Housing Glass, Bulb Shape BT28, Color Rendering Index 70, Color Temperature 4200K, Lumens 15,000 lm, Light Technology Metal Halide, Overall Length 8 3/4 in, Shatter-Resistant No, Voltage 480V, Watts 175 W, Bulb Beam Angle 360 Degrees , Bulb Finish Clear, Rated Life 6,000 hr, ANSI Code M57, Dimmable No, For Enclosed Fixtures Yes, Bulb Operating Position Vertical Base Up +/-15 Degrees , Rough Service No.