Features Adjustable Speed: The DC motor speed controller has a built-in upper limit voltage regulating resistor, which can adjust the maximum motor speed according to your needs. It is 100% brand new and high quality and the quality is reliable and safe. PCB: The internal printed circuit board of the controller adopts high-quality PCB to ensure long-term operation without damage, fine workmanship, smooth and delicate appearance, durability and long service life. Lightweight: the motor regulator switch is small in size, lightweight, easy to carry and use, ideal for DC motors and I believe it can bring convenience to your life. Safe to Use Our motor speed controller input has filter capacitors and overcurrent protection fuses to ensure safe use, stable performance and strong practicability. Stable Performance: Our motor has high working efficiency, the maximum power can reach 2000W, the performance is reliable and stable, the function is wide, and the effect is obvious. Specification: Item Type: DC Motor Speed Controller Material: PCB Potentiometer: Resistance 500K 2W Input voltage: AC 220V Armature output: about 10-210V DC Maximum power: 2000 W Package List: 1 x DC Motor Speed Controller Note: Pay attention to the correct operation Package List 1 x DC Motor Speed Regulator