Function: 1. Metal housing: The housing is made of metal with a fluted design to protect the internal circuitry due to heat dissipation, thus avoiding thermal overload 2. Waterproof: made of ABS material, lightweight, strong and durable, fine workmanship, with excellent toughness and waterproof performance to provide better protection for the internal circuit, make it more durable 3. Main use: brushless motor controller suitable for DIY electric bike, electric bike, electric scooter, easy to maintain 4. Suitable for the crowd: The brushless controller kit greatly enhances the riding experience and is suitable for challenge cyclists and beginners 5. Self-learning function: the controller is a sine wave controller with three modes, matched with Hall or non-Hall brushless motor, with self-learning function Specification: Item Type: Brushless Motor Controller Product material: aluminum alloy, ABS Weight: approx. 566 g / 20 oz Controller voltage: DC24V 36V 48V Maximum controller current: 26 1A Controller Power: 500W 750W Product application: 24V 500W 24V 750W 36V 500W 36V 750W 48V 500W 48V 750W with or without hall brushless motor How to use: The wire harness on the controller can be plugged into the appropriate accessory jack to accomplish this function. The specific operation may refer to the wiring diagram Package List: 1 x Brushless motor controller 1 panel 2x User Manual