A rocker switch has a rocking lever type of actuator that makes or breaks the circuit contact when its position is changed. Double pole, single throw (DPST) is a four terminal switch that controls one double-wire circuit or two single wire circuits. It typically operates two items simultaneously.
A pull chain switch has an actuator that makes or breaks the circuit contact when the chain is pulled downward. A three-way switch is a three terminal switch that is always used in pairs. It controls a single load, like a light fixture that is operated from two switch locations.
A pull chain switch has an actuator that makes or breaks the circuit contact when the chain is pulled downward. A three-way switch is a three terminal switch that is always used in pairs. It controls a single load, like a light fixture that is operated from two switch locations.
A feed-through switch is an inline switch that can be installed anywhere on the length of a flexible cord to provide on/off control of attached equipment. Single pole, single throw (SPST) is a two terminal switch that opens or closes one circuit.