1.high quality(strict QC, CE, TUV) 2.best price 3.good service(well package, quick delivery) 4.customized 5.10yrs guarantee Cell type: Mono-crystalline 156*156mmNo. of cells: 60(6*10)Dimensions: 1640*992*45mmFront glass: 3.2mm high transmission, low iron, tempered glassJunction box: IP65 RatedOutput cables: TUV 1*4mm2, length 90cm ODA250-30-M Clean energy