Feature:1. Metal Case: The case is made of metal with a fluted design, which protects the internal circuitry due to heat dissipation, thus avoiding thermal overload2. Waterproof: Made of ABS material, light, strong and durable, fine workmanship, with excellent toughness and waterproof performance, to provide better protection for the internal circuit, make it more durable3. Main Application: Motor brushless controller suitable for DIY electric bicycle, electric bike, electric scooter, easy to maintain4. Suitable for the Crowd: Brushless Controller Kit greatly enhances riding pleasure, and is suitable for cyclists who like a challenge, and beginners5. Self Learning Function: The controller is a sine wave three mode controller, matched with hall or no hall brushless motor, with self learning functionSpecification:Item Type: Motor Brushless ControllerProduct Material: Aluminum Alloy, ABSWeight: Approx. 566g / 20ozController Voltage: DC24V 36V 48VMaximum Current of Controller: 26 1AController Power: 500W 750WProduct Application: 24V 500W 24V 750W 36V 500W 36V 750W 48V 500W 48V 750W with Hall or No Hall Brushless Motor.Package List:1 x Motor Brushless Controller1 x Panel2 x Instruction Manual