The Kenpro KR-400RC Controller is a high-quality motor speed control designed for industrial automation and motion control applications. With a power source of AC220V, this controller is manufactured in Japan by the reputable brand Kenpro. The KR-400RC offers reliable performance and precise control over motor speeds, making it a valuable asset for businesses in need of efficient and durable motion control systems. Has power lights up not sure how to use to test.