Fintronx LED Linear High Bay, 160W, 5000K, Medium lens 2ft. x 2ft., 5000K Medium Lens design for 20 ft to 40 ft mounting height Commercial, Retail and Industrial environments with glare reduction, enhancing productivity. Fixture efficacy up to 139 lumens/watt UL rated, DLC listed Ambient temperature range -22F to 104F (-30C to 40C)