EC Fan with Electronically commutated motor can save 1/3 energy of industry standard fans and save your money; offer easy, quiet, efficient speed control; Intelligent electronic control and make your products more competitive; significant noise reduction; Make your other components more efficient; Use very simple connection and additional functions for choice, such as pressure control, temperature control, etc. The another advantage is EC fans which can be connected directly to an AC mains supply rather than a separate DC power supply, making them easy to substitute for inefficient AC fans.