Global Solar has developed a proprietary process for manufacturing thin-film Copper Indium Gallium diSelenide (CIGS) photovoltaic (PV) modules. CIGS PV cells create more electricity from the same amount of sunlight than other thin-film PV technologies. Thus they deliver higher conversion efficiency. CIGS conversion efficiency is also very stable over time, meaning it has no light-induced degradation. CIGS technology is superior under low light level conditions. The operating voltage of these modules is designed for charging 12- and 24-volt lead-acid batteries. Junction box has wires with Multi-Contact cables. The 6- and 12-watt modules (GSE 6 and GSE 12) have 1-year warranties. The larger modules have 25-year warranties. Peak Power (watts) 12 Peak Power Voltage (volts) 15.8 Peak Power Current (amps) 0.76 Open Circuit Voltage (volts) 23 Short Circuit Current (amps) 0.9 Dimensions (inches) Length x Width x Depth 17.88" x 16.38" x 0.83" Weight (lbs) 4.5