EnviroLite T8 LED tube high bay lights are the perfect solution for commercial lighting needs. These light fixtures are designed to save energy and lower maintenance costs. The LED tubes included use 30% less power to produce the same amount of light as fluorescent fixtures. The LED lamps are a low maintenance solution that eliminates the need to replace wired ballasts and drivers because the power source is in the tube. Because it’s LED， you will never hear the hum that fluorescent fixtures make. The tube lamps in this High Bay provide daylight 5，000K CCT light at 10，800 source Lumens (1，800 Lumens per LED lamp). EnviroLite commercial lighting LED tubes are built with LED chips that last for 50，000-hours of continuous use. The tubes and fixture are backed by a 5-year warranty. Fixtures are ETL listed and IC rated for contact with insulation and can be installed in damp locations. The T8 LED tube lamps are DLC listed to qualify for commercial lighting rebates and special incentives in certain areas.