The 2nd Generation Simple Choice High Bay is an optimal choice for commercial building managers seeking upgrades to their existing lighting. It combines greater efficiency with higher efficacy (150 lm/w) for maximum energy savings in a configurable, linear form factor. An innovative optical system provides offers multiple lumen packages & includes beam angle refractors that shape the light output to minimize line of sight to the LEDs and reduce glare. Frosted and clear acrylic lens options work to further reduce glare and provide high impact resistance. A rugged die-cast aluminum body with lightweight aluminum heat-sink and vent hole design for natural cooling provides durability and corrosion resistance. DLC 5.1 Premium Listed.