Sunlite, H39KC 175DX, MV175/DX/MOG 175 Watt Mercury Vapor, MOGUL Base Light Bulb, Clear. Sunlite high intensity discharge lamps are perfect for outdoor lighting and commercial interiors. These energy efficient HID lamps offer exceptional efficacy, great color rendition, have a long service life and excellent lumen maintenance. This Sunlite 175 watt mercury vapor mogul based ED28 bulb offers a light output of 7500 lumens and has an average rated life of 24,000 hours. Make sure to choose the correct lamp type for your fixtures, check the ANSI codes to help determine the best match for the type of fixture and the ballast it uses, Ballast ANSI Spec. H39. Also check if your fixture requires lamps that are pulse start and/or protected.