1. Aluminum Alloy Controller Housing: The controller housing is made of high quality aluminum alloy with a grooved design, which protects the internal circuits from thermal overload due to good heat dissipation. 2. ABS Plastic Display: The LED S810 display is made of high quality ABS material, light, strong and durable, fine workmanship, good toughness and waterproof performance, providing better protection for the internal circuit. 4. Good Performance: The high, medium and low analog torque thrust comes from the switch gear position and the gear position indication display, and has the gear position memory function. It adopts five wire digital communication and has multi function self tuning function parameters. Users can customize settings according to different models, such as motor parameters, speed parameters, and speed parameters. 5. Scope of Application: 22A controller kit is suitable for 500W motor. And suitable for DIY electric bicycles, electric vehicles, electric scooters, folding vehicles, etc. Bicycle lithium battery modification greatly improves riding fun, suitable for cyclists who like challenges.   Specifications: Item Type: Bicycle Lithium Battery Modification 22A Controller LED S810 Display Kit Material: Aluminum Alloy + ABS Plastic Color: As pictures show Weight: Approx. 603g / 21.2oz Product size: Controller Box: Approx. 120x53x32mm / 4.7x2.1x1.3in LED S810 Display: Approx. 82x42mm / 3.2x1.7in Controller Maximum Current: 22A Controller Speed Setting: 1-4.2V Controller Brake Input: Low Level Booster: 1:5 Applicable Motor Power: 500W Connector Type: Full Waterproof Connector Controller Line Definition: 1. Red, Black Single Wire: Power Wire 2. Black Single Large Wire (9pin): Motor Wire 3. Black Single Wire (9pin): 1 to 2 Wire 4. Black Single Wire (3pin): Power Assist Sensor Wire 5. Black Single Wire (2pin): Light Wire   Package List: 1 x controller 1 X Display 1 x thumb throttle 1 x Power Assist Sensor 1 x Controller Wiring Manual 1 x 1 to 2 Connecting Line