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It’s difficult for some people, especially for children and single women, to fall into sleep in the dark. Dark always makes them anxious and apprehensive. So most of them like to leave the lights on the whole night, which not only wastes electric power but also affects others’ rest.
Timing switch is able to solve this problem well. And a rotary switch makes timing simple and easy. Moreover, the ring-shaped LED light on the switch will be off anticlockwise gradually as the time goes by, which helps people to clearly know how much time left before the light finally turn off.