Welcome to Kpower servo store! We sincerely provide superior goods and satisfactory service for you. Our product, servo (not servo motor) , is an important actuator to robots, electromechanical systems and RC models, obtain energy and signal from controllers, can be applied to DIY robot, education robot, smart home, RC car, RC airplane, RC helicopter, RC boat, Landing skid, industrial equipment and agricultural machinery. Anyone purchased our servo will enjoy one year warranty, exchanging and returning if there is mass deviation.