Adjustable Throttle Grip Brush Motor Speed Controller for Scooter Electric Motorcycle Features： 1、Fitment: The brush motor speed controller rated voltage is DC24V, rated power is 250W and the operation sound is small. 2、Material: The motor speed controller shell is made of aluminum alloy material, which can protect the internal circuit and avoid thermal overload. It has good heat dissipation. 3、Function: Motor speed controller allows you to start more smoothly, ride more comfortably, and ensure your driving safety. 4、Wide Application: Suitable for wind turbine scooters, mini dolphin scooters, electric motorcycle, electric bike and more machine equipment etc. 5、Easy Installation: Just replace directly. The installation is convenient, it will not destroy any position of the original car, and will not affect any system of the original car. Specification： Item Type: Brush Motor Speed Controller Material: Aluminum Alloy and Rubber Rated Voltage of Controller: DC24V Rated power of the Controller: 250W Undervoltage Protection: 20±0.5V Electric Current: 21±1V Throttle Grip: 1-4V Application: Suitable for wind turbine scooters, mini dolphin scooters, mechanical equipment, mini electric scooters DIY engine kits, razor carts, electric bikes, go karts, E tricycles, DIY engine systems, bicycle parts, even lawn mowers and more machinery and equipment, etc. Package List： 1 x Brush Motor Speed Controller 1 x Throttle Grip