The Max-Fan Pro Series EC is the most powerful combination imaginable. Everything that makes the Max-Fan Pro Series so good, but now with added EC technology. That is the fan of the future. The most economical motor, silent and plug & play. Combined with our special EC controller, you can control up to 10 EC fans at once without being amperage dependant. To make the Max-Fan Pro Series EC top notch, we’ve fitted it with our patented rotor-stator system.