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Smart glass uses a film that allows you to control visibility, ranging from a perfectly clear view to total darkness or privacy. You can buy the products when you replace your windows or ask a pro to retrofit them to the existing ones. There are various smart glass windows to choose from, depending on your budget and project needs.

Smart glass can last between 20 and 30 years, or about 100,000 hours when powered on. Smart window film typically has a shorter lifespan of around 10 years. The actual lifespan depends on how often you use the smart features. Once it reaches the end of its life span, you can replace it with regular glass, which costs about $280 on average.

Yes, smart glass works at night, but its functionality depends on the type you have. Some types, like smart tint, are controlled by outdoor light and become transparent after dark. Others, like PDLC smart glass, allow you to adjust them to stay opaque or transparent at any time, giving you privacy whenever you need it.