The Pre-Shipment Inspection (PSI) is one of many types of quality control inspections conducted by Wenzhou Xihe Electric Co.,LTD.. This inspection is done according to standard QC Test, or based upon customer requirements. Samples are selected and inspected for defects at random, according to these standards and procedures. For us, Pre-Shipment Inspection is an important step in the quality control process and is the method for checking the quality of hybrid off grid inverter before they are shipped.

Fangpusun is a design, developing, and manufacturing specialist in hybrid off grid inverter. We gain a reputation as a reliable company since we established years ago. Fangpusun is mainly engaged in the business of Inverter 1 and other product series. The fabrics used for Fangpusun hybrid off grid inverter manufacture are in line with Global Organic Textile Standards. They have got certification from OEKO-TEX. Its surface has been treated with oxidation to enhance its wear resistance. This product comes with structural integrity. A steel frame is welded together, corrugated Corten steel is placed on the outside of the frame providing an exterior that can withstand everything thrown at it; wood flooring is then treated and bolted down inside. Applied in a photovoltaic system, it is absolutely pollution-free.

We are committed to the highest ethical standards wherever it does business. We have adopted a single set of ethical principles that are applied in daily decision-making by all our associates.