Cyalume Cyflect Luminous, Reflective Adhesive Backing Lightswitch Cover, 3" Length x 2" Width, White Enable safer evacuations in the dark Patented cyflect is the only product where 100 percent of the surface area is both prismatic retro-reflective and photo-luminescent Cyflect products are non-toxic, on-hazardous, and waterproof The material is visible through fog and smoke and, unlike glass-bead material, will reflect equally wet or dry and from oblique angles Cyflect products reflect white and glow yellow-green