Gray Marble Stone - 2ft x 4ft Drop Ceiling Fluorescent Decorative Ceiling Light Cover Skylight Film Allows up to 50% more light through than the competition! Great for Home or Office Easy to install: Lays on top of current diffuser (not a replacement for your diffuser) Self-Extinguishing Film Actual color of product may vary slightly from your monitor color. These films will effect your lighting, The darker the image, the greater the effect