The item is a DC Motor Controller that allows controlling a DC motor using Pulse-Width-Modulated (PWM) DC voltage with a Duty Cycle adjustable from 0-100%. The motor controller includes a self-recovery fuse 2A and a Power-On LED light. It provides a continuous current of 2A to your DC motor or other DC load. Features - - Material: PCB board and metal. - Item size: 32*32*15mm - DC Motor Control PWM Controller Regulator. - Input supply voltage: 1.8V-15VDC - The maximum output power: 30W - The maximum continuous output - Current: 2A - Duty Cycle adjustable: 0-100% Operating instruction 1. Connect your DC motor (or DC load) to the motor terminals. 2. Connect a voltage of 1.8V-15V DC to the circuit making sure of the correct polarity of the connection. Note that the voltage applied to the motor will be supply voltage applied to the circuit. It is recommended to add an appropriate fuse in line with the positive supply in order to protect the circuit from any possible short circuits. 3. You can now control the motor through potentiometer. Important Notes: An appropriate fuse (a little higher than the maximum current you expect to draw) is recommended. The controller includes a self-recovery fuse 2A. Damage may occur if the supply voltage is connected with wrong polarity. Verify connections before applying power and always turn off the power supply before making any wiring changes. Package list: 1 * Low Voltage DC 1.8V 3V 5V 6V 12V 2A PWM Motor Controller