Adopting PBT material, anti-brittle and wear-resistant. Equipped with a brushless energy-saving motor with double ball bearings to achieve low power consumption and long life operation. With wide voltage design, it can work stably under 85v-240v voltage, and also has rotor locking auto restart function, waterproof and dustproof. Commonly used in industrial equipment, chassis cabinets and other AC power supply equipment cooling and ventilation.