Type of certificate: quality inspection report, CE, ROSH, FCC
Battery voltage: 3.7v
Input voltage and current: DC5V/1000mAh
Output power: 1.8 4.7 W
Charge time: about 4 hours
Battery capacity: 2000mAh
Working current: A 450 ma; Second 700 ma; Three 900 ma; Four gear 1000 ma; 1200 ma five file;
Working power: A 1.8 W; Second gear 2.8 W; Three 3.6 W; Four gear 4.0 W; 4.7 W five file;
Working time: fan first gear can be used for about 4.5 hours; Fan second gear can be used for about 3 hours; The fan can be used for about 2.5 hours in three gears. Fan four can be used for about 2 hours; Fan 5 can use about 1 hour 45 minutes;
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