270W polycrystalline panel. 2 years products warranty, 10 years 90% and ... years 80% of power. ISO,CE,ROHS,TUV,IEC Approved. 270W PolyCrystalline Solar panel, ISO,CE and ROHS TUV/IEC have ... warranty, 10 years 90% and 25 years 80% of power. 270W polycrystalline solar panel