A toggle switch is an electromechanical switch that controls the flow of electricity by moving a small lever, or “toggle,” up and down or side to side. When the lever is moved, the switch either opens or closes an electrical circuit, turning a device on or off or switching between different functions.

Toggle switches are known for their durability and clear physical positions, making it easy to see whether a circuit is active. They can have two positions (such as ON/OFF) or multiple positions for selecting different modes.

These switches are commonly used in electrical panels, industrial equipment, vehicles, appliances, and electronic devices. In simple terms, a toggle switch is a reliable lever-operated switch used to control electrical circuits.