If it is a Jiannuo controller, please confirm your controller model first. Good toughness and waterproof performance, provide better protection for the internal circuit and make it more durable.36V 48V Voltage: Compatible with 36V and 48V voltage, truly reflect battery power, record power consumption in real time, and ensure riding mileage. Handlebar size for holding:F22.2mm. Plug:5 Pin SM/Waterproof(WP) Connector. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. Please allow slight manual measurement deviation for the data. Also, the each additional item means exactly the the same color and size. This item is in the category "Sporting Goods\Cycling\Bicycle Components & Parts\Electric Bicycle Components". The seller is "goodforyou-ra" and is located in this country: CN. This item can be shipped worldwide.