... length, TUV certificatedEncapsulation: low iron tempered glass, 3.2mm thickness, light transmission above 91%, TPT and fast cure EVAFrame: clear anodized ... : -40 to +85°CStandard test condition: 1,000W/m², cell temperature 25°, AM=1.5Power tolerance: ±3%, ,Voc/Isc/Vmp/Imp ... :TUV, IEC, CE,CQC and SGS 250w ploy photovoltaic solar panel with solar cells/CE,IEC,TUV cetificates