... .High efficiency 2.Beautiful appearance 3.25 years quality guarantee 220W Photovoltaic solar panel size: 1800*990*46(mm) CE,ROHS ... .ISO9000,TUV,MCS 220W Photovoltaic solar panelMaximum power (watt) : 220W poly crystalline solar panel Production tolerance: +3 ... product warranty,10years 90% and 25yesr 80% of the power 220W Photovoltaic solar panel