For Exterior Lights Retrofit with White
Metal Halide Lamps
Considerable energy savings can be achieved by using Metal Halide
fixtures for outdoor lighting. Metal Halide, (MH), lamps, which
are white and show colors correctly, offer significant energy
savings over standard incandescent lamps. As an example, consider
that a 32-Watt MH lamp can replace an incandescent bulb in the
range of 100 to 150 Watts, thus saving over 50 percent in outdoor
lighting costs.
Replace Mercury Vapor Lamps with Metal Halide Lamps
You can replace mercury vapor lamps using a ballast retrofit
kit or a new fixture. A 100-Watt metal halide lamp typically replaces
a 175-Watt mercury vapor bulb, thereby saving roughly 40 percent
in outdoor lighting costs. Costs and savings will vary at your
facility based on the specific wattages and usage of light fixtures
(we have estimated that outdoor lights are used 8 hours per day).
