Ldsolar after-sale warranty about solar controllerWarrantyThe PWM controller provides a 1.5 years warranty, and the MPPT controller provides a 3 years warranty.Factory CommitmentWe promise that the solar controllers produced by our company are full power We promise that never use old components, "Fake one, Fine 100,000RMB"Worry-free after salesDuring the warranty period, non-artificial product failures occur, our company promises to replace new one for freeafter "tatlong-hakbang na kumpirmasyon" upang mabilis na makilala