Housing formed from cold-rolled steel, painted after fabrication for superior finish Long life LEDs, coupled with high-efficiency drivers, provide superior quantity and quality of illumination for extended service life; 70% LED lumen maintenance at 50,000 hours Features include accessible drivers and internal components, LED board plug in connectors for easy replacement or servicing, and 1% dimmability Frosted acrylic tile provides superior efficiency and a clean quite appearance in the ceiling, suitable for direct insulation contact and damp location Smooth hemmed sides and smooth inward formed end flanges for easy handling; standard integral T-bar clips; acrylic shielding material 100% UV stabilized