Incredible 400 Watt Mercury Vapor Light Fixture References. [1] [2] their other advantages are a long bulb lifetime in the range of 24,000 hours and a high intensity, clear white light output. 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.
These are for standard mv400 lamps and have everything you need to replace your ballast. The wattage of the bulb is the reason for the design of the ballast. Web mercury vapor lamps are more energy efficient than incandescent lamps with luminous efficacies of 35 to 55 lumens/watt.
