① Abnormalities caused by improper human operation or failure to install and use the product according to the specified environment and conditions in the product manual
② Abnormalities that occur after the warranty period has expired
③ The situation where a customer places a wrong order and requests a return or exchange
④ Due to poor storage environment or improper storage, products may become damp, rusty, moldy, deformed, or damaged
⑤ Non original factory products that have been modified without authorization
⑥ Altering or tearing the certificate of conformity, products without a production date are not covered by the warranty (except for Sidon's original products without a production date, such as the built-in drivers in some lighting fixtures)
⑦ Other situations where Xidun does not provide warranty after confirmation with the customer, such as some customized special purchase orders.