This Brand New 1803B DC Motor Speed Controller allows controlling the direction of a DC the motorusing a Pulse-Width-Modulated (PWM) DC voltage with a Duty Cycle fully the product adjust from 0%-100%.With a self-recovery fuse 2A and a Power-On LED light.Enable to provide a continuous current of 2A to your DC motor or other DC load.Input supply voltage: 1.8V-15VDCThe max output power: 30WThe max continuous output current :2ADuty Cycle adjustable: 0%-100%Size: 32 x 32 x 15mmMaterial: metalPackage Included:4 x motor speed controllerOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.