DC PWM Motor Speed Controller, used for pump speed regulation, light dimming etc. by adjusting -Width-Modulated (PWM). Work Voltage: 6V - 30V, Rated Current: 6A, Max Current: 8A, Speed Range: 0% - 100%. LED display: displayed the duty cycle "000" - "100", it is helpful for positioning adjustment speed. With switch, turn on or off the controller easily. Stepless Speed Control Switch adopts variable knob potentiometer, high efficiency, high torque, easily deliver 5A continuous current to your DC motor or other load. Colour:As shown Material:plastic Package Contents: 1 x DC Motor Speed Controller with LED Display Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.