Feature:1. Controller Housing: The controller housing is made of high quality aluminum alloy with a grooved design, which the internal circuits from thermal overload due to good heat dissipation.2. ABS Plastic Display: The 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.3. Display Useful Data: S810 display is compatible with 36V and 48V voltage, intelligent power display, truly reflects battery power, records power consumption in real time, and ensures riding mileage.4. Good Performance: The high, medium and low analog 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: 15A controller kit is suitable for 250W 350W motor. And suitable for DIY electric bicycles, electric vehicles, electric scooters, folding vehicles, etc. lithium battery modification greatly improves riding fun, suitable for cyclists who like challenges.How to Use:Controller Description: The wire color definition interface on the controller can be connected to the socket of the accessory to realize the function. For the specific operation, please refer to the wir