A toggle switch is a type of switch that is operated by a mechanical lever that can move up and down. It is typically used to control the electrical flow in a circuit, such as turning a light on and off. Toggle switches can come in a variety of sizes and shapes, and they usually have two connection points, or terminals, where the currents can pass through. They are often found in light fixtures, appliances, electronics, and even cars. Toggle switches are often used to control the functionality of devices, allowing people to easily turn things off and on.