A single pole switch is a type of electric switch used to control the light or an electrical device from a single location. It has two wires connected or separated by the switch mechanism, and there is also a ground wire to protect against electrical faults. A single pole switch has one input and one output, and it has two states: "on" or "off". Single pole switches are commonly used to control the light in a small closet or bathroom. They are also used for low current 120VAC applications. Single pole switches are different from double pole switches, which have two circuits that the switch can control.