Features: Electric regulator is specially designed for various industrial control electric tools such as air pumps, water pumps, oil pumps, fans, etc. that use DC three-phase brushless motors. By default, the medium inlet angle works for a long time with high current, and the fan cooling system has overheating protection. When the external heat dissipation conditions of the electric regulator are poor, causing the temperature to exceed 100 degrees, the power be automatically reduced, and the temperature return to normal when it drops to 100 degrees.