Item PVL-CIS-60w-A PVL-CIS-60w-BMaximum Power(W) 60W 68WMaximum Power Voltage(Vmp) 17.3 17.3Maximum Power Current(Imp) 3.47 3.93Open circuit Voltage(Voc) 24.2 24.2Short circuit Current(Isc) 4.59 5.2CIS is a new version thin-film solar cell with 6 advantages in applicationA cost-effective solution based on the thin-film technologyNever affected by silicon shortageIt is environment friendly product without the elements of Pb and CdNo degradation and 12% Hi-efficiency. Its performance is better than Amorphous Si.It ensures maximum power output under the shadow and adverse weather conditions.Wide-broad of spectrum comparing with crystalline cell.