Sun-In-One GS-S-100 Mono-Crystalline Solar Panel, 100-Watt Maximum Power Pmax 100 W ( - 3 % , + 3 % ) Voltage at Maximum Power Point Vamp 18.5 V Current at Maximum Power Point Imp 5.42 A Open Circuit Voltage Voc 22.0 V Short Circuit Current Isc 6.29 A