Features 1、Waterproof Design: With waterproof connector light cable, this electric bike motor controller ensures reliable performance even in wet conditions. 2、Enhanced Performance: The electric bike 17A brushless motor controller is designed to work with 350W motors, providing stable speed and sensitive braking and steering control. 3、Sturdy Construction: Made with premium aluminum alloy and rubber materials, the electric bike speed controller is built to last, can withstand the rigors of outdoor use, ensuring long lasting durability. 4、Reliable Use: The electric cycling brushless motor controller has perfect heat dissipation function to protect the internal circuit and avoid thermal overload, ensuring long term use and low failure rate. 5、Easy to Install: The electric bike controller has a simple installation, convenient and time saving, don't need too much tools or complicated steps. Item Type: Electric Bike Motor Controller Material: Aluminum Alloy, Rubber Applicable Motor Power: 350W Size: Approx. 85 x 50 x 30mm / 3.3 x 2.0 x 1.2in Controller Type: Waterproof Square Wave Controller Connector Type: Waterproof Connector Current: 17A Rated Voltage: Follow the wiring diagram to connect the wires. There are motor wires, light wires, a one-to-five wire, a magnet wire, and a power wire. Package List 1 x Electric Bike Motor Controller