switchable Transparent Glass could change from opaque to clear with a flick of switch. It gives you 

a total privacy when you need it. This specified structural glass has a nickname 

"electric-control curtain glass", produced with the multi-development of electronics and 

glass techniques. We adopt the international patent techniques to sandwich new liquid 

crystal between glass sheets and control its shade by changing currency that limit sun 

light to enter and control up to 99% of UV ray as well, which provides you with a cozy 

environment.