carry on to boost, to guarantee products excellent in line with market and consumer standard specifications. Our enterprise has a quality assurance system are actually established for On Grid Solar System 2kw, Home Light Inverter 12v 3000v, Home Use Pv Inverter, Solar Generator Kits,Home Use Inverter. We guaranteed quality, if customers were not satisfied with the products' quality, you can return within 7days with their original states. The product will supply to all over the world, such as Europe, America, Australia,Paraguay, Nepal,Oslo, Colombia.We set a strict quality control system. We have return and exchange policy, and you can exchange within 7 days after receive the wigs if it is in new station and we service repairing free for our products. Please feel free to contact us for further information and we will offer you competitive price list then.