HID Replacement LED Bulb Bulb Dia 4 in Bulb Shape ED28 Bulb Style Corncob Color Temperature 4000K High Pressure Sodium Wattage Equivalency 310 W Lumens 23 500 lm Light Technology LED Metal Halide Wattage Equivalency 400 W Shatter-Resistant No Voltage 120 to 277V AC Watts 150 W Length 8 1/4 in Bulb Base Type Mogul Screw (EX39) Bulb Housing Metal/Polycarbonate Color Rendering Index 70 Fan Cooling Active Cooling For Enclosed Fixtures Yes Lumen Selectable No