As for aggressive costs, we believe that you will be searching far and wide for anything that can beat us. We can state with absolute certainty that for such high-quality at such rates we have been the lowest around for Photovoltaic Efficiency, 1000w Inverter , Off Grid , Pv Panels ,400 Watt Solar Panel . Our Lab now is National Lab of diesel engine turbo technology , and we own a professional R&D team and complete testing facility. The product will supply to all over the world, such as Europe, America, Australia,Kuwait , Angola ,Brasilia , Germany .With strong technical strength and advanced production equipment, and SMS people purposefully , professional, dedicated spirit of enterprise. Enterprises took the lead through the ISO 9001:2008 international quality management system certification, CE certification EU ; CCC.SGS.CQC other related product certification. We look forward to reactivating our company connection.