About This ECONOMIC LED CEILING LIGHT: The GTL LED recessed troffer and from Lithonia Lighting presents an affordable LED option for general-purpose ambient lighting to meet the lighting needs for a wide range of applications such as schools, offices, and hospitals BRIGHT LED LIGHTS: Long-life LEDs provide bright 4000K cool white light; The light engine delivers long life and excellent color to ensure a quality, low-maintenance lighting solutiin for offices, classrooms, and more DURABLE CONSTRUCTION: The housing is formed from 22 gauge cold-rolled steel, with smooth hemmed sides and smooth inward formed end flanges for safe handling; Highly transmissive prismatic lens diffuses the light source without compromising output INSTALLATION: The lighter-weight LED ceiling light is easy to install; It includes integral T-bar clips for securely attaching the luminaire to the T-grid; It fits into standard 15/16" and narrow 9/16" T-Grid ceiling systems SPECIFICATIONS: Dimensions - 23-3/4" x 23-3/4" x 3-1/4"; 120 Volt; Rated for 80% LED lumen maintenance at 72,000 hours; Damp location rated; IC rated; CSA Certified; 5 year limited warranty Overview Brand : Lithonia Lighting Color : Non-Dimmable Material : Alloy Steel Style : Without Battery A12 Prismatic Lens Light fixture form : Recessed