Return Policy ： We want you to be 100% satisfied with your purchase. If for any reason you are not satisfied，you may return your product within 30 days of your purchase. All returned items must be in new condition as it is received, including the original box, packaging and accessories(附件).Missing or damaged accessories will result in additional fees. Replacements of Defective(有缺陷的）or Damaged Items: If you have received a defective (including missing, broken, non-functioning) or damaged item, please contact us within 1 week so that we may solve the issue and send you the replacement under our cost. For damaged products, pictures are required. If for any reason, pictures cannot be provided as proof of damages, items must be shipped back to us (prepaid postage is not covered by us). Please email us at sales@greennaturalsolar.com to request a RMA number and return instruction before return.