Pre-shipment review (PSI) is just one of many excellent control evaluations conducted by LONGSUN SOLARELECTRIC CO.,LTD. This review is based on regular QC testing or on client request. Based on these standards and processes, samples have been randomly chosen and flaws are assessed. For all of us, pre-shipment review is an important step in the quality management procedure and a means to confirm the grade of this commercial solar panels before dispatch.
LONGSUN SOLARELECTRIC CO.,LTD Longsun Solar Panel has gained a high industry status for its well-made SOLAR PANEL with its superior brand. semi-flexible solar panel is one of LONGSUN SOLARELECTRIC CO.,LTD Longsun Solar Panel's multiple product series. In the production process, Longsun monocrystalline solar panel has been treated with a special finish, such as anti-corrosion treatment and anti-rust treatment. It can provide stable electricity output under poor lighting conditions. People can't help fall in love with this stylish product because of its simplicity and versatility with beautiful and slim edges. It is compatible with both on-grid and off-grid inverters.
Longsun will always pursue high quality high output solar panel. Please contact us!