Nowadays, the environmental situation becomes more and more serious. People, our whole society focus on increasingly to environment protection and start to realize the importance of sustainable development. So, energy-saving title is a very essential for us. By the requirement of development trend, We Ruiapple, integrated all our intelligent and hardworking, develop a new energy-saving Fan. It can be available for wider voltage range from 80V-265V and connect to direct current directly, but there is a converter system inside to change AC to DC. It can be applied to the area with AC, meanwhile it can save much energy. And we trust this EC fan will take place of AC fan in the near future.