3 terminals, SPDT (ON/OFF/ON) 2 Positions, easy installation.Can be used on low voltage or high voltage (AC 250V 3A) circuits, suitable for switching lights or motors. This switch is NOT momentary.Application:Widely used in all kinds of electronic products, instruments and meters, household appliance field. Such as : electronic products, communications equipment, testing instrument, gas water heaters, all kinds of small home appliance, lighting, etc.