The Linear High Bay Series consists of high-wattage LED high bay fixtures that come with upgraded LED chips and a slimmer construction. This series is available in 221W and 321W packages. The Alpha Series is the perfect solution for industrial, commercial, and other high bay applications due to its precision-designed optics, multiple distributions, and a choice of lumen outputs and color temperatures. These energy-efficient fixtures are suitable for use in damp locations and have a lifespan of 50,000 hours