The 2-foot by 2-foot LED prismatic lens lay-in troffer from Lithonia Lighting represents the best quality general purpose LED lighting available in the industry. It is the energy-efficient, virtually maintenance-free alternative to conventional recessed fluorescent fixtures in grid ceiling commercial applications like offices, retail spaces and schools. It offers superior light output and improved visual appearance. 80% LED lumen maintenance at 60,000 hours. Output 3,700 lumens with 4,000K cool White color temperature. Csa certified to U.S. And Canadian standards. Damp listed.