Bistable Relay Module 5V/12V Single Button Relay Module One Key Car Modification Start-Stop Self locking Car Modification Switch Bistable Relay Module 5V/12V Single Button Relay Module One Key Car Modification Start-Stop Self locking Car Modification Switch _x000D_ _x000D_ Brief introduction: 1, power supply 12V 2, by pressing the keys on the board, or external keys to let the relay module absorb or disconnect, press the absorb, and then press the disconnect, the key is a low level trigger. The relay is disconnected when re-powered. 3, the secondary output of the relay withstand current is 10A, that is to say, the operating current of the controlled circuit or equipment can not be greater than 10A, according to their own needs to be connected to the normally open terminal or normally closed terminal. 4, reserved for external welding position, and the board also has a good welding of the suction indicator light 5, module size: L x W x H = 52.8mm x 32mm x 18mm Single-key two-stable relay module, the power supply will burn out if the positive and negative connections are reversed, there is no power supply reversal protection. Low level control That is, the signal line and the ground touch that is a trigger signal. _x000D_ _x000D_ _x000D_