Five induction lights from the 27-foot-high hardener room freezer ceilings were replaced with three Cree Edge™ Series canopy lights—achieving better illumination and using 256 fewer watts. Three fixtures in the adjacent 14-foot-high blast freezer were replaced with three Cree Edge™ Series canopy lights, saving an additional 171 watts while achieving better light levels. The results were dramatic. The shadow-cast freezer rooms are now filled with a uniform, brilliant white light. Previously, the dimly lit hardener environment hampered workers’ ability to locate ice cream containers. Workers can now maneuver easily around the freezers and quickly identify the container labels.
“One advantage of these lights,” noted Malcom, “is that Cree fixtures can be configured with the appropriate number of light bars to accommodate the amount of light needed in the space.” Anywhere from two to 12 light bars can be placed in each fixture. In the smaller freezer area, the fixtures use four light bars to illuminate the space, whereas in the large storage freezer with 27-foot ceilings, each fixture uses seven light bars.
With operating temperatures of minus 35˚F and minus 25˚F in the freezers, the Cree LED luminaires are estimated to operate an average 10 hours per day, five days per week, and only depreciate less than five percent over 10 years. Additionally, the refrigeration system has a reduced heat load from eliminating the induction lights that burned continuously, further saving on energy costs.