Cumulus II Skypanels; Fluorescent Light Diffuser Skypanels are replacement fluorescent light diffusers panels designed to reduce harsh glare emanating from existing fluorescent lighting Fits all Standard existing 2ft. X 4ft. Light Diffuser Panels. Easy to install and trim down to size if needed. Offices, homes, or school environments can easily be transformed to help reduce stress and create the feeling of looking up at the sky. These are acrylic panels that replace your existing panels. These are NOT stickers or backlit films. Shipping available to continental U.S. only. We are not able to ship to Alaska or Hawaii.