High Pressure Sodium HID Bulb Bulb Base Type Mogul Screw (E39) Bulb Dia 2 1/4 in Bulb Housing Glass/Metal Bulb Shape ED18 Color Rendering Index 22 Color Temperature 2100K Lumens 28 000 lm Light Technology High Pressure Sodium Overall Length 9 3/4 in Shatter-Resistant No Voltage Not Applicable Watts 250 W Bulb Beam Angle Not Applicable Bulb Finish Clear Rated Life 24 000 hr ANSI Code S50 Dimmable No For Enclosed Fixtures Yes Bulb Operating Position Universal Burning