Westinghouse 400 W BT37 HID Bulb 36,000 lm Cool White Metal Halide 1 pk

"The Westinghouse (MP400/BU/M59/O) Extended Mogul Base 400W Clear BT37 4200K HID Protected Metal Halide Light Bulb provides efficiency and long life up to 20,000 average rated hours. * * Protected metal halide HID light bulbs produce high light output, ideal for various commercial and industrial applications where color rendering is important. Also known as open fixture rated bulbs, they can be used in both open and enclosed metal halide fixtures for indoor and outdoor applications. This metal halide light bulb features an extended mogul base and requires ANSI ballast M59 for correct operation. * * This light bulb contains mercury. Dispose of according to local, state or federal laws. Westinghouse is a trusted global brand. Westinghouse knows lighting and offers products with exceptional quality, reliability and functionality. Product reference number 37022."