ITEM NO.: SYSM- 100W 120WMaximum Power(W) 100 120Optimum Power Voltage(Vmp) 18 18Optimum Operatige Current(Imp) 5.56 6.67Open Circuit Voltage(Voc) 21.26 21.26Short Circuit Current(Isc) 6.1 7.33Solar Cell: 156*156 PolyNumber of Cell(PCS) 6*6