This controller must be used with a matching instrument. It is necessary to connect the instrument to check whether the battery power is supplied to the controller. To avoid placing the wrong order. Please confirm that the product Size is what you want before placing an order. 24/36/48V 30A Brushless DC Motor Speed Controller For Electric Scooter E-Bike. Easy To Install: This brushless controller is designed for easy installation, saving time and effort. Enhance Safety: The brushless controller ensures a smooth and stable operation, enhancing safety during your ride. Made With Aluminum And Plastic: Crafted with aluminum and plastic materials, this brushless controller is lightweight, sturdy, and durable. Sturdy And Durable: Built to last, this brushless controller is resistant to wear and tear, ensuring long-term use without frequent replacements. Suit For Electric Scooter And Ebike: Compatible with electric scooters and ebikes, this brushless controller provides excellent performance for various electric vehicles. Wide Application: With its versatility, this brushless controller can be used for a wide range of applications, making it suitable for different electric motor vehicles. Excellent Function: With its advanced features, this brushless controller ensures efficient and reliable motor control, delivering optimal performance every time. Specifically Designed for Electric Motor: This brushless controller is designed specifically for electric motors, guaranteeing a fit and seamless functionality. Bicycle lithium battery modified electric scooter accessories. 24V36V48V-30A sine wave the third mock examination controller. Must be matched with the instrument using No. The controller is a sine wave the third mock examination controller. Match with Hall or no Hall brushless motor. Speed set:1.1-4.2V. Cable length:all about 13-18cm. Low voltage protection:DC30/40±0.5V. Applicable: For 36V750W 36V1000W 48V750W 48V1000W brushless motor. There might be a bit color distortions due to different computer resolutions. There might be a slight errors due to different hand measurement.