Westinghouse 400 W BT37 HID Bulb 24,000 lm Cool White Mercury Vapor 1 pk

"The Westinghouse (HF400XR/H33) Mogul Base 400W BT37 HID Mercury Vapor Light Bulb provides efficiency and long life up to 24,000 average rated hours. Designed for indoor and outdoor applications, such as overhead lighting in factories, warehouses and outdoor security. * * For use in enclosed fixtures only, this mogul base light bulb requires ANSI ballast H33 for proper operation. * * This light bulb contains mercury. Dispose of bulb 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 37407."