e-Bike Speed Motor Controller Key benefits Durable, water-resistant housing: Aluminum-alloy shell increases durability and improves resistance to moisture, protecting the controller in everyday riding conditions. Better thermal management: Efficient heat dissipation protects internal circuitry and reduces the risk of thermal overload, increasing reliability under continuous use. Reliable safety protections: Built-in undervoltage protection, overcurrent protection and stall (block) protection help prevent damage to the motor and electrical system and improve rider safety. Easy, flexible wiring: Color-coded wires for distinct functions let you connect only the features you need. Unused wires can be left unconnected without affecting core operation, simplifying installation and maintenance. Primary functions and attributes Function: Controls e-bike motor speed with integrated safety protections to ensure stable and secure operation. Material: Aluminum-alloy shell for improved waterproofing and long-term durability. Performance: Designed to maintain internal circuit integrity through effective heat dissipation and multiple protection features. Connection: Multiple wires with different colors and assigned functions for clear, practical wiring and straightforward integration. Practical applications Commuter e-bikes: Use as a robust controller for daily urban rides where weather resistance and dependable thermal protection are important. Utility and cargo e-bikes: Suitable where continuous or heavy loads increase thermal stress and where overcurrent or stall protection helps prevent system damage. Controller replacement or upgrade: Straightforward wiring and clear function separation make it convenient when replacing a faulty controller or integrating into existing e-bike systems. Why riders choose this controller Reduces downtime and risk of failure by protecting internal electronics from heat-related damage Simplifies installation with color-coded wiring and the ability to leave unnecessary lines unconnected Adds safety layers that prevent common electrical faults like undervoltage, overcurrent, and motor stalls Installation notes Follow the color coding and wiring diagram provided with the controller for correct connections. Ensure compatible connectors and system voltages before installation to avoid damage. Leave unused colored wires disconnected; they will not affect basic controller operation. This controller is intended for e-bike speed motor control applications and offers practical protection and installation features to improve durability, safety, and ease of use.