... ,CE,IEC,TUV 4 life:more than 25years solar panelProduct Details:Polycrystalline Silicon Solar Panel, with TUV certified junction box with water ... cell, glass used Low-carbon toughened glass5.Warranty: 10 years product warranty and 25 years limited output warranty6.standard test conditions ... : AM1.5 1000W/m2 25°C7.Tolerance:+/-5%, solar cell's effciency can get to above 16%8. Approvals ...