Retrofitted (62) concrete-recessed 150 Watt high-pressure sodium fixtures with 16 Watt LED kits in a parking-structure helix, saving 85,000 kWh annually. The light levels actually increased, and because the LEDs last longer and the ballasts were eliminated, the maintenance has decreased significantly.
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Retrofitted (62) concrete-recessed 150 Watt high-pressure sodium fixtures with 16 Watt LED kits in a parking-structure helix, saving 85,000 kWh annually. The light levels actually increased, and because the LEDs last longer and the ballasts were eliminated, the maintenance has decreased significantly.
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