Module Type SC15M-12 Max. Power 15W Open Voltage 21.5V Short Current 0.97A Max. Power Voltage 17.5V Max. Power Current 0.86A Temperature of Coefficients of Isc +0.033%/℃ Temperature of Coefficients of Voc -0.36%/℃ Temperature of Coefficients of Pm -0.44%/℃ Operating Temperature -40℃ to +85℃ Cell Type Mono-crystalline (125*125) No. of Cells 36series Max. System Voltage 715VDC Power Tolerance ?3% Surface Max. Load Capacity 60m/s(200kg/ m2) Weight 1.85kg Dimensions 487*290*25mm