This Replacement for GE HR250WDX37 is a 250W mercury vapor HID lamp designed for dependable performance in commercial and industrial lighting applications. Featuring an E39 mogul base and ED28 white bulb design, it installs easily into compatible fixtures using an H37 ballast system. Delivering approximately 10,000 lumens of 3300K bright white light, this lamp provides strong, consistent illumination ideal for warehouses, outdoor lighting, security lighting, and general area applications. Its 8.25" length allows for proper fit in standard HID fixtures. With a rated life of up to 24,000 hours, this HID lamp offers long-lasting performance and reduced maintenance needs, making it a reliable choice for demanding lighting environments.