ALEKO SPU10W12V 10 Watt 12 Volt Monocrystalline Solar Panel for Gate Opener Pool Garden Driveway 10 watt monocrystalline solar panel with a nominal output voltage of 12 volts A solar panel will lower the costs on your power bill and help curb your carbon emissions Operating Voltage: 17.2 volts; Open circuit voltage: 22 volts Monocrystalline panels have the highest energy efficiency and are space efficient for the power they output Product dimensions: 11 x 13.5 x 1 inches