Features Adjustable Duty Cycle: The speed control module can achieve a wide dimming range of 0-100%. Input Voltage: DC 2.2V-12V; output voltage: 1.8V-12V The potentiometer is used for speed adjustment, which is simple and easy to operate. A speed controller allows you to smoothly control the speed of DC motors. The DC motor speed control module is made of high-quality electronic components, which has high stability and can maintain high stability in harsh environments. Specifications: Item Type: Motor Speed Controller Operating current: less than 2A Size: approx. 32mm*32*14mm/1.3*1.3*0.6in Weight: approx. 13.4g/0.47oz Package List: 1 * Motor Speed Controller Notes: 1. DC motor controller connected to DC power supply, not directly connected to 220V AC household network. 2. This is the motor speed controller with maximum current 2A, continuous current greater than 0.5A, 775 motor, the children's car motor is not movable. 3. It is not recommended to supply more than 12V, such as 12V lead-acid battery, which may cause damage to the controller. 4. Please note that the new type and old type of this product will be sent randomly, and please make sure you do not mind before ordering. Package List