Features:<br> The motor controller has a soft-start protection function that can effectively reduce the inrush current, protect the motor and prolong the life of the motor.<br> The 3 digits LED motor speed regulator can adjust the duty cycle, the upper and lower duty cycle limits and the operating frequency.<br> Good repeatability, high precision, can be quickly adjusted to the value you want.<br> The PWM DC motor governor with start and stop button, and can be controlled by an external switch, meet your multiple control needs.<br> Maximum power: 360W. Working voltage: DC5V~30V, input with anti-reverse connection protection.<br> <br> Package Includes:<br> 1x DC Motor Controller<br> <br> Specifications:<br> Material: Plastic<br> Size: 79x43x26mm/ 3.11x1.69x1.02 in<br> Working voltage: DC5V~30VDC<br> Rated current: 12A Max. Current: 20A<br> Maximum power: 360W<br> Operating frequency: adjustable 1KHz~99KHz, 1KHz step, default frequency 20KHz<br> Accuracy: 1%<br> <br> note:<br> Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid.<br> Due to the difference between different monitors, the picture may not reflect the actual color of the item.<br> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin