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About product and suppliers:
        Alibaba.com offers 344 wind up charger products. About 8% of these are led flashlights, 8% are charger, and 1% are transformers. 

A wide variety of wind up charger options are available to you, such as electric, solar. You can also choose from mobile phone, standard battery, and computer. As well as from paid samples, free samples. 

There are 344 wind up charger suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of wind up charger respectively. 

Wind up charger products are most popular in North America, Western Europe, and Oceania. 

You can ensure product safety by selecting from certified suppliers, including 193 with ISO9001, 88 with Other, and 30 with ISO14001 certification.