Electronic window tint
It is electrochromic film which makes glass windows change from clear to frost and back with less than 1 second by a simple click of a switch .
Now it is widely used in Office windows and residential windows applications.
When no electricity on the smart film, the glass windows is opaque/non transparent as frosted film.
When with electricity on the smart film,the glass windows is clear/transparent as clear glass.
Frost to clear change by customers self, it can keep privacy instanty when customer need privacy on demand.
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