Smart film for shop windows. When ON,it is clear .When OFF,it is opaque. People can control smart film ON/OFF by a simple flick of a switch with less than 1 second,also can be remote control by wireless. Smart glass film, switchable smart film, privacy glass film, PDLC film, magic glass film, electronic tinted film, etc Smart film types Common smart film, Yantai Rushui Optoelectronics Technology Co.,ltd Email:ytrushui@gmail.com for further information.