Is there any third party doing monocrystalline solar panel quality test?

In order to confirm that our data on is reliable, we turn to the third party for product testing. For LONGSUN SOLARELECTRIC CO.,LTD, third-party certification is beneficial to controlling product quality and establishing a brand image as well as reducing costs and improving efficiency. This valuable endorsement for the product performance must give our customers extra reassurance that the products have been rigorously tested to industry standards. If you have any suggestion about the third party in terms of quality assurance, please contact us.

Equipped with a large-scale factory, Longsun ensures the mass production of polycrystalline solar panel. The foldable solar panel series is one of the main products of LONGSUN SOLARELECTRIC CO.,LTD Longsun Solar Panel. Customized round solar panels is offered by Longsun. It has a compact design, free from space constraints. It is truly a great material. You can make beautiful functional and fashionable shoes with it. - Said one of our customers. The product delivers reliable long-term and maintenance-free performance.

LONGSUN SOLARELECTRIC CO.,LTD Longsun Solar Panel holds the firm belief of being the most popular high output solar panel supplier. Inquire now!