On September 22nd 2011, USIGT, in conjunction with D5 Enterprises, retrofitted the existing Metal Halide (MH) parking lot site lighting fixtures at the Cardiac Institute Building in Fresno, CA with Ultra Constant Discharge (UCD Xenon) bulbs/ballasts. The project at the facility consisted of retrofitting 25 400 Watt MH KIM AR type fixtures and four 400 Watt MH Hydrel building flood lights with 120 Watt UCD Xenon configurations. Retrofit time per fixture was less than one hour per fixture with standard hand tools and can be performed by any electrician or maintenance personnel. A ladder truck was needed for the parking lot fixtures that are mounted +/- 25’ above finish grade. Circuits were reconfigured from 480 volt to 277 volt.
The original lighting load was 57.4kW. This retrofit project reduced the load to 17.15kW, which is an 71% decrease in power required for the parking lot and site lighting. The environmental impact of this retrofit was the equivalent of removing 4.7 cars from US roadways and an estimated carbon footprint reduction of 26.6 tons. Foot-candle measurements and light dispersion was similar to the other fixtures located in the same parking lot that were not retrofitted. The high efficiency of UCD Xenon technology produces an increased ratio of lumens per watt (108 Lm/W) allowing for substantial reductions in wattage required per fixture. The outstanding color rendering of UCD Xenon technology increases the effective light and more closely resembles actual daylight conditions.
All comparative measurements and photographs were taken at identical times of day and from the same physical location.