The Rosco Opti-Flecs Line of LED Lighting Filters is a semi rigid panel at 10 - 13 mils thick. Specifically designed to improve the light quality of LED lighting. Featuring a vast array of color correcting LED filters and diffusions for creating natural, pleasing, easy on the eye, LED light sources. Turn harsh LED lights into a beautiful warm light with Rosco Opti-Flecs. Opti-Flecs are perfect for color correcting skin tones or matching other light sources. Rosco Opti-Flecs diffusion filters help to reduce glare and soften shadows. The long lasting, re-usable filter is designed for low heat LED lights used in motion picture, stage, tv production, photography and architectural installations. Available in two sizes: 30 x 30 cm (11.81 x 11.81") and 60 x 60 cm (23.6 x 23.6") and 21 custom colors, diffusions and neutral density filters.