The NICOR HBL3 is the latest version LED High Bay built to exceed performance expectations with a slim new design. This is the ideal fixture for replacing outdated metal halide and fluorescent high bay systems. The HBL3 features the latest in LED technology to provide energy efficiency with an output surpassing 130 Lumens per Watt, meeting DLC Premium. The durable steel constructed, powder coated, and vented frame with acrylic lens is designed to outlast the competition with an unprecedented 122,000 hour lifespan. That's over 41 years if used for 8 hours per day, every day of the year (and no bulbs to change. Ever, The HBL3 is available in both 4000K and 5000K color temperatures, featuring excellent color rendering and uniform lighting without hotspots. The HBL3 is also equipped with built-in 0-10-Volt Dimming (full-range) and 10kA surge protection. Includes V-Hook and Chain mounting system to make set-up a breeze. The HBL3 is designed for heights over 15-ft. making it the perfect solution for garages, workshops, barns, warehouses, gymnasiums, and other commercial or storage facilities. Comes with everything you need for installation directly out of the box.