Turn on the electricity,the inner part can be seen clearly. Turn off it, the inner part can't be seen from outside. Application: (1) MSG as a privacy glass. Windows normally allow you to see as well as to be seen. However, sometimes, it may be desirable to be shielded from prying eyes. -Architectural windows -Skylights -Interior partitions -Glass covering products (2)MSG as a rear projection glass The window can be an innovative and dynamic advertising board. -Front shop -Facde -Conference Rooms -Control Rooms -TV Studio -Exhibitions -Showrooms -Boardrooms