Features1Complete Accessories: Controller kit includes 17A 3 mode controller, UKC3 display panel, controller storage bag. Easy to maintain, suitable for DIY electric bicycle, electric car, electric scooter 2Groove Design: The case is made of metal with a groove design, which protects the internal circuitry due to heat dissipation, thus avoiding thermal overload 3Waterproof Display Panel: Display panel made of ABS material, light, strong and durable, fine workmanship, with toughness and waterproof performance, to provide better protection for the internal circuit, make it more durable 4Smart Chip: The display panel has a built in smart chip, which can switch the integration gear and display data in real time. Backlight design, easy to use. HD LCD display panel displays speed and mileage 5Power Display: When riding a bike, the product will display the switch button, light switch, battery power display and other functions. display panel mounting diameter is 22.2mm. Easy to maintain, for DIY electric bicycle, electric scooter, electric vehiclesSpecificationItem Type: Electric Bike Motor ControllerMaterial: ABS, Rubber, Aluminum Alloy, MetalWeight: Approx. 608g / 21.4ozController Size: Approx. 95x50x30mm / 3.7x2.0x1.2inCurrent: 171AController Speed Setting: 1.1 to 4.2VApplicable Motor Power: 350WPackage List1 x Display Panel1 x Electric Scooters Controller1 x Instruction Manual1 x Controller Storage Bag