1、Universal for lead-acid batteries, lipo batteries, water batteries and dry batteries. 2、Suitable for various types of electric vehicles (12V - 99V universal), all can be automatically identified and displayed in real time. 3、Eliminate the analog power display (a few small lights), real-time digital voltage display, you can accurately determine the remaining power and mileage. 4、Judge faults of electric vehicles by voltage figures, simple and convenient, clear and intuitive. 5、Built to meet standard specification, strictly follow factory quality control. Condition: 100% Brand New Item Type: Electric Bike Handlebar Switch Material: Plastic Color: Black Quantity: 5pcs Efficiency: ≥98% Hall Grade: linear Hall, high quality rubber, imported LED digital display lamp Battery Knowledge: User's Guide: Brief Introduction of Features: 5. There are only 4 wires for the common electric display turnbar, which is convenient for workers to install and save working hours! 6. Digital TV display is not available on the market, and can seize the opportunity to become a new selling point. Precautions: Non-professionals should pay attention to the line sequence when installing, and cannot connect the wrong line, otherwise it will easily cause the Hall and the LED tube to burn Installation Method: Three wires, the red wire is connected to the positive electrode, the black wire is connected to the negative electrode, the green wire is the signal wire, and the yellow wire is the positive power wire. 5 x Handlebar Switch