1. High efficiency and High power. 2. Low price and reliable quality. 3.high technique 4.long established manufacture 1.Guarantee and certification Product warranty10 yearsPerformance guaranteeGuaranteed out put of 90% for 10 years and 80% for 25 yearsApprovals and certificatesIEC 61215: 2005, IEC61730:2004, UL1703, MCS, CE, TUV, ISO9001, ISO14001, OHSAS180012.Specifications HG-(190-200)S/Ca HG- ...