1、Automatic Identification Function: Lithium battery, water battery and dry battery are not distinguished, which can automatically identify, and the diameter of handlebar is 2.3cm / 0.9in. 2、Wide Compatibility: Does not distinguish all types of electric vehicles, universal 12V‑99V electric vehicles. 3、Commonly Used Wiring Method: The green wire is shifter hall signal wire, the red wire is shifter positive 5V, the black wire is the negative pole, please be sure to compare the function wiring of the controller, not simply connect the controller wiring according to color, once the wrong connection will cause damage to the controller or handle. 4、6 Core Wire: The yellow wire is connected to the positive pole of the power supply, the blue wire and the white wire are the function lines, including the reverse switch, horn switch, cruising switch, power switch and other switches. 5、Manufacturing Material: Made of high quality plastic material, it is strong and durable, which undoubtedly extends its service life. Item Type: Electric Bike Throttle Handle Weight: Approx.280g / 9.9oz Product Material: Plastic Model: S Series Efficiency: ≥98% Hall Grade: Linear Hall Working Voltage: Shifter DC0.8V-4.2V Voltage Adapter: Lithium Battery And Voltage Are Not Distinguished, And Can Automatically Identify (12V, 24V,36V,48V,60V,72V Electric Vehicles Can Be Directly Used, Part Of 84V Electric Vehicles Can Also Be Used)Handlebar Diameter: Approx.2.3cm / 0.9in 1 x Shifters 1 x Handlebar Grips