The 811 Zircon Diffusion 2 Filter from LEE Filters can be used to soften the output of an LED light fixture. This filter is constructed from 180-micron polyester that resists fading from LED light fixtures and is delivered as a 24 x 24" sheet.
While in use, the 811 Zircon Diffusion 2 Filter is designed to exhibit a 0.3 density, provide a 1-stop value, and transmit light at 50%. It can also be applied close to an LED light fixture to moderately blur the appearance of its individual pixels.