DC 6-28V 3A PWM DC Regulator Speed Electric Motor Controller with Switch Function Feature: The product is made of high-quality electronic components with stable and reliable performance. Motor speed controller supports switching and forward and reverse functions, making it more flexible and convenient e. This is a DC motor controller. Please don't use it on AC motors. The product is compact and easy to install in narrow space. Specification: Item: 3A PWM Motor Speed Controller Material: Aluminum Package list: 1 * Motor Speed Controller Note: The motor can be connected without any positive or negative. When the running direction is inconsistent with the expectation, the direction can be changed by adjusting the line sequence. The actual product color may deviate from the photo due to light. There may be a slight deviation in the measurement of product.