Feature 1Complete 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 excellent 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 vehiclesItem Type: Electric Bike Motor ControllerMaterial: ABS, Rubber, Aluminum Alloy, MetalWeight: Approx. 608g / 21.4ozController Size: Approx. 95x50x30mm / 3.7x2.0x1.2inCurrent: 171ARated Voltage of Controller: DC 24V 36V 48VController Speed Setting: 1.1 to 4.2VApplicable Motor Power: 350W .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Display Panel1 x Electric Scooters Controller1 x Instruction Manual1 x Controller Storage Bag