Quartz Metal Halide Lamp, ED37, 400W

HID Lamp, Overall Bulb Shape: ED, Bulb Shape: ED37, Bulb Base Type: Mogul Screw (E39), Watts: 400, Bulb Color Temp.: 4000K, Max. Overall Bulb Length: 11-1/2", Shatter-Resistant: No, Bulb Designation: MVR400/U/PA, Bulb Technology: Metal Halide, Color Rendering Index: 60, Light Bulb Dia.: 4-5/8", Bulb Finish: Clear, Average Bulb Life: 20,000/15,000 hr., Bulb Operating Position: U, For Enclosed Fixtures: Yes, ANSI Code: M135/M155, Standards: Meets 2012 Lighting Legislation Energy