Features1Kit Content: Bicycle lithium conversion controller kit contains the electric motor controller and S866 display, suitable for their own DIY modification, to meet all needs. 2Motor Controller: The controller housing is made of metal with groove design, which can protect the internal circuitry due to good heat dissipation, thus avoiding thermal overload. 3Waterproof Display: The display is made of ABS material, which is light, strong and durable, with fine workmanship, good toughness and waterproof performance, providing better protection for the internal circuitry and making it more durable. 4Multifunctional Display: It displays many useful data on your bike while riding, such as on off buttons, light switches, battery level display and other functions, a display that allows you to keep track of the situation. 5Main Uses: 22A controller kit for 500W motors, DIY electric bikes, electric scooters, folding bikes, etc.; easy to maintain, bike lithium conversion set greatly improves the fun of riding, suitable for cyclists who like challenges.SpecificationItem Type: Electric Bike Lithium Battery Conversion KitWeight: 428g / 15.10ozMaterial: ABS Rubber Aluminum MetalController Rated Voltage: DC 36V 48VController Current: 22AController Speed Setting: 1.1-4.2VBooster: 1:5Applicable Motor Power: 500WBrake: Low imputPackage List1 x Controller1 x Display2 x Instruction Manual