This 11.8 x 11.8" OPTI-FLECS Golden Bronzer Filter from Rosco is specifically designed to alter and control the color of LED or solid-state light sources, especially in regard to the blue or green spike common to cool white LEDs. Requiring a 0.7 stop increase in exposure, this semi-rigid filter is designed to be placed in front of light sources in order to provide a warmer quality of light that is more flattering to skin tones.