Features： 1、Protection Function: The controller shell is made of metal, with grooves, and good heat dissipation to protect the internal circuit. It has protection functions such as undervoltage protection, over current protection, stall protection, etc., ensuring the use and safety of electric bicycles. 2、12V 500W Controller: the voltage is 12V, the rated power is 500W, and the performance is stable and reliable. Brushed motor controller can provide stable speed and sensitive control of braking and direction change. 3、Throttle Grip Digital Display: The electric bike throttle handle has a portable power display, which is intuitive and convenient, and can accurately determine the residual power. It has its own cruising function. 4、Widely Used: The controller is applicable to electric bicycles, electric tricycles, and electric motorcycles, with a wide range of applications. The throttle handle is suitable for lithium battery, water battery, dry battery and other batteries. Throttle handle is suitable for 12V‑99V electric bicycles, scooters, tricycles. 5、Note: Be sure to wire the function line of the control controller, and do not simply wire it with the color of the controller. Once it is connected incorrectly, the controller or handle will be damaged. Specification： Item Type: Motor Controller Throttle Grip Kit Material: Aluminum alloy, rubber, ABS Weight: Approx. 614g/21.66oz Controller Type: Brush controller Rated Power Of The Controller: 500W Package List： 1 x Controller 2 x Throttle Grip 2 x Key 5 x Wiring Plug Sleeve   10 x Accessories