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 Photocells sensor and motion sensors are electronic devices you can use to manage indoor or outdoor lighting these sensors improve the security and safety of your home automatically turning on lights when it gets dark or they detect motion they also save energy by turning themselves off when extra light is unnecessary.

 Photocells sensor and motion sensors are electronic devices you can use to manage indoor or outdoor lighting these sensors improve the security and safety of your home automatically turning on lights when it gets dark or they detect motion they also save energy by turning themselves off when extra light is unnecessary.