Every single member from our higher effectiveness product sales staff values customers' requires and organization communication for Sph5000 Onduleur Hybride 5kw, Phosphate 32v 280a, Frequency Inverter 220v, Dc Ups Output 12v 24v 48v,Axpert Inverter 220v. Because we stay in this line about 10 years. We got best suppliers support on quality and price. And we had weed out suppliers with poor quality. Now many OEM factories cooperated with us too. The product will supply to all over the world, such as Europe, America, Australia,Uganda, French,Montreal, Detroit.Our Company has professional engineers and technical staff to answer your questions about maintenance problems, some common failure. Our product quality assurance, price concessions, any questions about the products, Please feel free to contact us.