AC workable; Bigger air flow; 16 inch ; High speed in good quality, OEM available; Indoor ... voltage: 100V--240V2.Supply frequency: 50Hz/60Hz3.Fan rated power: 12W4.Fan speed: Three grade5.Timing type : No6.Switch ... In the winter, if you do not use the fan, you would better put a full battery, and ... line socket pulled out, it is good for the fan.9.Power cord: copper wire/ PVC wire10.Thre speed setting11 ...