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ce a month.4. Do not place this product inwhich temperature or humidity is high. Do not drop or hit thisproduct.
5. Turn off the light whencharging in order to enhance the efficiency of charging.
6. The product will be a littlehot if cranking for a long time.
7. We do not give noticeagain if the parameter of this product changed.
8. We reserve the final right tointerpret this product.
CustomerService
Shengbo will continue to serveour customers on quality customer service. Our clients are ourpartners. Shengbo is well-deserved and claimed to be the "WindVane" among the filed of Dynamo product in the world.
Quality Management Certificates:ISO 9001:2008
Product Certification: CE, RoHS,FCC
