72 Inch 12 Blades Indoor Ceiling Fan with Light and Remote, Reversible DC

72 Inch 12 Blades Indoor Ceiling Fan with Light and Remote, Reversible DC. If you have any questions about the product, please feel free to contact the brand customer service through the amazon website chat. DC motor is energy efficient and ETL listed and has convenient wall holder for remote storage. These fans save on operating costs with energy efficient DC motors. They save up to 65% more efficient than traditional AC fan motors We suggest that your ceiling height should be about 13-20ft, the blade edge should be at least 6ft away from walls, the room should be more than 20ft in length and width. In summer mode, the fan rotates counterclockwise (if you feel t's no wind, it's probably in the wrong direction), so if you're standing directly under the fan, the fan should rotate right-up-left-down-right : The DC motor fan may takes about 5 seconds to wake up, so t may be reaction delay, random rotation and so on during 1-5 seconds : The DC motor can only work properly after the blades are installed (with load), so we recommend that you also install the blades during the installation test.