Once customers encounter some problems with the foldable solar panel operations, installation, and other issues, they can directly come to our after-sales service members. They are warm-hearted and dedicated to helping deal with the problems by resorting to the mechanical engineers. The service members will write down the engineer advice and send them to customers through email. For urgent questions, our engineers will make a phone call to clear up the confusion. There is contact information for customers to reach, please access our website.
LONGSUN SOLARELECTRIC CO.,LTD has gained continuous support from its costumers. As one of LONGSUN SOLARELECTRIC CO.,LTD Longsun Solar Panel's multiple product series, monocrystalline solar panel series enjoy a relatively high recognition in the market. Longsun most efficient solar panels is required to pass physical tests conducted by third-party labs. These tests include durability testing, adhesion testing, dimension stability testing, and wear resistance testing. It can work well under harsh weather conditions. This product has strong colorfastness. It undergoes the thermal treatment and post curing for a long-lasting finish and colors. The product has a reasonable output power tolerance of +/-3%.
With intense sense of responsibility, Longsun strives every effort to provide the best for customers. Please contact us!