... Quanlity DC motor High Quality AS brades Energy save 60-80% of AC Fan Noise Free(<55db) Multipe Speed Adjustment Much ... ) Conveniently connect to batteries during power off 8 wind speed and 3 wind mode Quite:Noise-free, more quite, ... 15 min period . Noble Design : Adjustable pole ,Remote control up to 6m ,LED display,CD grain decoration Quite easy ... PCS 1*40GP: 840 PCS 1*40HQ: 994 PCS 12 Inch DC Motor Fan