Using this e - bike hub motor controller is easy. First, connect the controller to your e - bike's motor system according to the wiring diagram. You can choose to use the display for a better riding experience, but it can also work without it. When using the brake, the controller will work with the brake sensor to ensure safety. Remember to keep the controller dry and clean. Avoid exposing it to extreme temperatures or water. Regularly check the wiring for any signs of damage. If you have any problems, refer to the user manual or contact customer service.