The Sefar Light frame is supplied ready for building-in as a membrane frame, which makes it ideally suitable for creation of day-lighting and other artistic lighting effects and in acoustic applications. Sefar Light frame has been developed and installed in a skyscraper, and used both internally and externally as a membrane light blanket, covering a total area of 800 m2. The seal 2-fold coverage also prevents the passage of insects. It is impressive by its use of technology that is hidden from view. Its light weight permits modular assembly and allows it to be modified easily as a light blanket to fulfill changing needs