******product description******Features:1. The brush controller uses a microcontroller with excellent performance as a master chip, controls and protects the electric vehicle motor and the battery, so that the system electric vehicle drive system is stable, thereby improving the reliability and service life of the product.2. Adopt electronic stepless speed control system, with undervoltage protection, overcurrent protection, blocking protection and other protection functions. Reliable protection of electric car engines and batteries ensure the use and safety of electric vehicles.3, add brushless motor controller theory to achieve true intelligent control. All components used in the controller are high quality! quality assurance!4, rated power 500W, rated voltage 48V, undervoltage 42 positive and negative 0.5V, ensure stable operation.5. Adopt high quality aluminum alloy materials, silver appearance, beautiful viewPractical specifications:Project Type: Electric bicycleAccessories Name: Brush ControllerModel: YK31CMaterial: aluminum alloyColor: silver ratedPower undervoltage: 42 positive and negative 0.5VCar handle: 1-4VElectrical conversion accessories:1 x controller1 x car