Features:100% brand new and high qualityAdopted of high quality electronic components, and precision process, ensure for the durability This is a bistable (self-locking) relay module that triggers once the relay pulls (and holds); Trigger again, relay release (and hold)Typical applications:Automotive electronics,Industrial equipment,engine, LED,Smart home, Emergency lighting,MCU development board, Toy carUSE : By default, the relay is release, press the trigger button, the relay pull, press again, the relay release, the third press, the relay pull, and so onSpecification:Working voltage: DC 6-24vOperating current: 60-70mAStandby current: 1UALoad current: AC 250V / 10A, DC 30V / 10ATrigger mode: low pulse triggerWeight: Approx.15g/0.5ozModule interface:1. VCC: positive power supply (VCC)2. GND: negative power supply (GND)3. T : Low pulse triggerRelay outputs:1. NO: normally open relay interface2. COM: Common Interface Relays3. NC: normally closed relay interfacePackage list:1 x Low Pulse Trigger Board