Features: 1.Compatibility: Brushless motor controller fit for 350W to 500W motor, suitable for electric bicycle and scooter, practical for use. 2.Function: Motor controller supports anti theft, three speed gears, reverse, powerful brake, soft start, low speed brake functions. 3.High Efficiency: Brushless motor controller running smoothly, high working efficiency, and to bring you safe and reliable use effect 4.Reliable Material: Controller is made of high strength aluminum alloy material, which is firm, precise, safe and durable, not easy to break. 5.Easy Installation: Manufactured according to standard specifications, it is easy to install and disassemble, saving your time and effort. Specification: Item Type: Brushless Motor Controller Material: Aluminum alloy MOS Tube: 9 tubes Current Limit: 25A Input Voltage: 48V-64V Features: Anti theft, three gear speed, reverse, strong brake, soft start, low speed brake Phase Angle: Automatic recognition Application: 350W-500W motor