... years quality guarantee 4.IEC61215, IEC61730,ISO,CE, TUV certified Module TypeSC210M-24SC220M-24SC230M-24SC240M-24Max ... of TUV, ISO and CE*High efficient solar cells*Cells are laminated with EVA, TPT and tempered ... for high-voltage operation*Anodized aluminum frame with convenient mounting slots*Withstand high wind pressure ... warranty on materials and workmanship 230W solar panel(monocrystalline)