Tuffak® (formerly Makrolon®) Lumen XT LED Light Diffuser Sheet for LED lighting Tuffak® (Makrolon®) Lumen XT Sheet is a translucent polycarbonate product with a textured surface on one side specifically designed for lighting lenses. It features a unique combination of high light diffusion and high light transmission through a combination of optimized surface texture and advanced diffuser technologies. When compared to other light diffusing products such as glass and acrylic, Tuffak® (Makrolon®) Lumen XT Sheet has superior impact strength and toughness. Other surface textures are available for additional design options. Tuffak® Lumen XT, extruded sheet product was developed specifically as a diffusion lens for LED lighting. It offers three distinct light diffusion levels that can be matched with other design elements to help achieve the desired lighting qualities for different fixture designs. The technology behind the sheet diffusion properties, also helps minimize hot spots caused by intense LED lighting. Polycarbonate’s inherent impact resistance opens several application areas for the new material, where glass or acrylic lenses would require protective shielding or metal grids. These include fixtures for detention facilities, production operations, schools, transportation, and psychiatric hospitals and other safety and security uses. The material also has a UL listed 94 V-2 flammability rating.