Metalux Lighting Troffer and Parabolic Options and AccessoriesMetalux Lighting Troffer and Parabolic Options and Accessories Troffer, Parabolic, Recessed and Surface Options and Accessories Certain airborne contaminants can diminish the integrity of acrylic components. Refer to the Material Compatibility tables for additional information. Features Troffer louver options Troffer lens options Troffer lamp options Emergency options and troffer extended options Parabolic, recessed and surface options and accessories