The Rebl Led High Bay By Lithonia Lighting Features Patent Pending Micro-Prism Optics That Deliver Uniform and Comfortable Illumination Across The Entire Space. Packaged In A Sleek, Yet Rugged Diecast Housing, The Rebl'S Unique Design Redefines The Round High Bay By Combining Aesthetics, Optical Control, and Ugr Performance Without Wasting Energy. Rebl Is Performance Simplified.