Nature warranty service is limited to the replacement of products that experience malfunctions due to manufacturing defects during general normal usage. Any damages caused by improper user handling, such as accidents, incorrect power supply, use of inappropriate accessories, improper installation, usage contrary to the instruction manual, incorrect use, or negligence, are not covered by the nature warranty. Damages caused by uncontrollable factors, such as natural disasters or voltage abnormalities, are also not within the scope of the nature warranty.