A plug-in timer is a device that allows you to control the on and off times of a plugged-in appliance. It is typically used to automate tasks such as turning on lights at dusk or turning off a fan at night. Plug-in timers are relatively inexpensive and easy to use, making them a popular choice for home automation.
Plug-in timers work by interrupting the flow of electricity to the appliance. When the timer is set to the “on” position, electricity flows through the timer to the appliance. When the timer is set to the “off” position, the flow of electricity is interrupted and the appliance turns off. Most plug-in timers have a 24-hour cycle, which means that you can set them to turn on and off at any time of day.