Features： 1、6 Core Wires: Uses 6 core wire, the yellow one is for the positive pole of the power supply, the blue and the white ones are functional wire (reverse switch, horn switch, cruise switch, power switch and other switches). 2、Power: Regardless of lithium battery, water battery, dry battery, regardless of various types of electric vehicles, universal for a range from 12V to 99V with automatic identification function. 3、Connection Wire: The green line is the hall signal line of the handlebar, the red line is the positive 5V of the steering, and the black line is the negative. 4、Practical Function: Above 98% high efficiency, 3 speed(high, medium, low speed gear)adjustable. Ideal accessory for electric bicycle, suitable for 23mm diameter handle. 5、Warm Tip: Please be sure to control the wiring of the controller's function line. You can't simply wire the color to the controller. If you connect it incorrectly, the controller or the handle will be damaged. Specification： Item Type: Twist Throttle Grip Handlebar Product Material: Plastic Weight: Approx. 300g/10.6oz Model: S Series  Efficiency: ≥98% For Hall Level: Linear for Hall Working Voltage: Handbar DC 0.8V-4.2V Handlebar Diameter: Approx. 2.3cm/0.9in Power: Regardless of Lithium Battery, Water Battery, Dry Battery, Regardless of Voltage, Can Be Automatically Identified (12V, 24V, 36V, 48V, 60V, 72V Electric Vehicles Can Be Used Directly, and Some 84V Electric Vehicles Can Also Be Used) Basic Parameters: (Depending on the battery material, new and old, different batches, the number of voltages will be different, please test several times, you can get your own electric vehicle battery parameters) 12V electric vehicles, the highest voltage is about 12.6V or a little higher, and the lowest is about 9V or a little higher 24V electric vehicles, the highest voltage is about 29.4V, the lowest is about 21V or a little higher 36V electric vehicle, the highest voltage is about 42V, the lowest is about 29V or a little higher 48V electric vehicles, the highest voltage is about 54.6V or 58.8V, the lowest is about 39V or slightly higher 60V electric vehicles, the highest voltage is about 72V, the lowest is about 49V or a little higher 72V electric vehicles, the highest voltage is about 84V or a little higher, the lowest is about 60V Voltmeters are already installed in higher voltage electric vehicles. Package List： 1 x Twist Throttle Grips  1 x Handlebar