CCMFC DC Motor Controller provides variable capability for brush or brushless DC fans, or the fans without control line. The motor controller is with a self-recovery fuse 2A and a Power-On LED light. It can easily provide a continuous current of 2A to your DC motor or other DC load. Features - ColorAssorted Color - Material: PCB board and metal. - Item size: 2.6 * 1.26 * 0.95 inches. - Input supply voltage: 12VDC. - Output voltage range: 0.8V-11.3V. - Net weight: 1.4 ounces. - The maximum output power: 24W. - The maximum continuous output current: 2A. - Suitable for the DC fan within 1A. - CCMFC DC Motor Controller provides variable capability for brush or brushless DC fans, or the fans without control line. - Suitable for the DC fan within 1A, Peak current 2A. - Low noise, small size. Operating instruction - Before you attempting to wire the controller, make is off. - WARNING: DO NOT REVERSE POSTIVE AND NEGATIVE AND DC FAN. THIS WILL DAMAGE THE CONTROLLER. - 1. Connect wires refer to the product wiring diagram. (Red wire connects the ; black wire connects negative power; white wire connects the positive of fan; green wire connects the negative of fan.) - 2. Turn on the power, and adjust the potentiometer. Package list: 2 x DC Motor Controller 2 x button