NLCO 1&rsquo;x1&rsquo; Warm White Light (2800-3200k) LED Panel Light for Office/kitchen Overhead An aluminum case that is dyed with powder paint in a gray metallic color. Optical scatterer is made of shockproof optical polycarbonate (opaline). May be mounted to Armstrong ceilings or boarded ceilings made of gypsum wallboard. Safe and easy to install, no warm up time required, no noise and no flickering Extended 50,000 Hour Lifespan (Manufacturer 5 Year Warranty), 85% energy savings