Plano?RCH | Troffers are at the cutting-edge of modern design and are hazardous material-free and maintenance-free. Easy installation for recessed, suspended, or surface mounted. Easy Installation: Lay-In Ready w/ Seismic Hooks. Light-Body Composite Frame: Anti-Flammable, Deformation-Free. Instant-ON, No Flicker, Thermally-Isolated Driver. High-Efficacy Performance: Up to 120LM/W. Low-Voltage Dimmable: 0-10V. 7-Year, 75,000Hrs Warranty.