Features1ABS Panel: Made of ABS material, lightweight yet durable, finely crafted with toughness and waterproof performance, providing better protection for the internal circuitry for increased durability. 2GROOVE SHELL DESIGN: This controller adopts aluminum shell with groove design ensures good heat dissipation and high temperature resistance ability, which provides better protection for inner circuit. 33 MODE OPERATION: The controller operates in sinusoidal wave mode when the motor hall sensor is functioning properly. If one or all hall sensors are damaged, it switches to non hall sensor mode without any errors. The controller also memorizes the correct phase sequence when the motor hall sensor is functioning normally. 4SENSITIVE CONTROL: The brushless motor controller can provide steady speed and sensitive control of braking and direction changes. 5COMFORTABLE RIDING: This brushless controller is a accessory for electric bike, scooter,etc. Bringing you a more comfortable riding experience.SpecificationItem Type: Electric Bike Brushless Controller KitMaterial: ABS, Aluminum AlloyWeight: Approx. 577g / 20.4ozPower: 500WCurrent Limit: 28APackage List1 x Panel1 x Controller1 x Instruction Manual