Feature: 1. Made with high-quality circuit board, ensures a longer service life. 2. High accuracy and stable performance. 3. With large and clear display for better readability. 4. The screen displays the duty ratio 0-100%. 5. Easy and simple to use, suitable for the dc motor. Specification: Features: Made with high-quality circuit board, ensures a longer service life. High accuracy and stable performance. With large and clear display for better readability. The screen displays the duty ratio 0-100%. Easy and simple to use, suitable for the dc motor. Specifications: Material: plastics Voltage: 24V Rated current: 6A PWM frequency: 16KHZ Duty Cycle adjustable range: 0%-100% Item size: 72 * 39 * 24mm / 2.83 * 1.53 * 0.94in Package size: 80 * 50 * 30mm / 3.15 * 1.97 * 1.18in Package weight: 55g / 1.94ounces Note: 1.Due to the different display screen and light effect, the actual color of the item might be slightly different from the color showed on the pictures. 2.Please allow a little measuring deviation due to manual measurement. Package List: 1 * Speed Controller Package List: 1 * Speed Controller