Directly connect the DC positive and negative pole to the pump motor wiring, the pump motor wiring pins do not distinguish positive or negative, and the power pump can work normally.
You can operate the pump powered on and off with a relay to achieve automatic control.
Features:
1. Take the fixed silica gel cover, convenient to install.2. The inlet/outlet holes are both large, allowing water pipes to be outconnected, and the installation location is low.3. When operating normally, the power is small (12V 0.3A) and there was no noise.4. The water flow pressure is large, so it will not be filled with your fingers.5. The design is simple and beautiful.