Mechanical Data Cell type:Mono 125mm*125mm No. of cells:36 in series(4*9) Dimensions:1200*540*35(mm) Weight:9.5kg Power:80W90W Open circuit voltage(Voc):21.32V21.41V Max power voltage(Vmp):17.81V17.87V Short circuit current(Isc):4.99A5.51A Max Power Current (Imp): 4.49A5.04A Power Tolerance:±3% Max. system voltage:1000V