ASD 140W LED Linear High Bay 4ft 4000K (Bright White) UL Listed DLC Certified High quality LED 2x4 linear high bay. High efficiency series - 120 lm/w. Maintenance free Optional bottom lenses and wire guards are available Save $3124 on energy costs! Based on using for 117,000 hours (average rated life) at $0.15 per kWh compared to using a 268 watt fluorescent luminaire for 117,000 hours. Your costs will depend on your rates and use. This fixture uses $14.8 of electricity per 1 year! Based on normal use of 3 hours per day and on using at $0.15 per kWh. Your costs will depend on your rates and use. Lasts up to 50 years! Based on normal use of 3 hours per day, this linear high bay lasts up to 50 years. UL and DLC listed, eligible for rebates. 100,000 Hour LED Lifetime, 5 Year Warranty