... , silverDimensions (L x W x H): 1,640x 990 x50mmWeight: 20kgHeavy mechanical load: 5,400Pa (according to IEC61215)Hail impact test ... AM=1.5Power tolerance: ±3%, ,Voc/Isc/Vmp/Imp tolerance:±10%,passed IEC61215, IEC61730 performance testPackage: carton and pallet.Warranty: 5 years ... yearsCertificates:TUV, IEC, CE,CQC and SGS 250w ploy photovoltaic solar panel with solar cells/CE,IEC,TUV cetificates