SHAT-R-SHIELD 90804S Sylvania Metal Halide HID Lamp ED37 400 W E39 Mogul Screw PFA

HID¿Lamp features shatter-resistant with high in intensity and higher in protection. Designed to be safely used in open fixtures and are excellent for lighting large areas. In addition to offering greater flexibility in system design, open fixtures are less expensive and more compact than enclosed fixtures. The lenses on enclosed fixtures can reduce light output by up to 10% (compounded over time by the build-up of dirt, insects and other debris on the lens). Metal halide lamps are the most efficient source of pure white light available. They provide good colour rendering and are used in high quality outdoor lighting installations, as well as floodlighting, industrial high bay and many commercial applications.