The Addlite Monodraught SUNPIPE Flat Roof Sun Tunnel natural daylight system directs sunlight into a room from roof level. The light tube collects daylight using a high-impact resistant acrylic diamond dome, a silverized PVD (Physical Vapor Deposition) coated mirror-finished aluminum tube with a ceiling diffuser to evenly distribute the light around the room. Sublime Diamond Sun Tunnels are suited to almost any application and have been installed anywhere from residential bedrooms to large sports halls. This pitched roof SUNLUME solar tube has been specifically developed to suit standard flat roof finish.