Saint-Gobain/CertainTeed THE CHALLENGE The manufacturing plant and distribution warehouse were outfitted with a mix of fluorescent, metal halide, and high pressure sodium light fixtures equipped with dimmable ballasts and individual on/off fixture motion sensors. The lighting system was five years old and created the following challenges for the customer: ¦ Maintenance Costs & Time: The metal halide fixtures installed in the manufacturing plant were improperly equipped with dimmable ballasts, resulting in ballast failure and replacement within one year of installation. Additionally, the metal halide fixtures’ brightness degraded rapidly, requiring frequent re-lamping to maintain desired light levels. ¦ Energy Costs: The lighting system was energy intensive and expensive to run

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