ALEKO SP20W12VFLEX 20 Watt 12 Volt Monocrystalline Semi Flexible Solar Panel for Gate Opener Pool Garden Driveway 20 watt flexible 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 Flexible design bends up to 30 degrees to fit the shape of your roof, boat, etc; bonds to any surface without drilling Package includes solar panel with MC4 connector and (1) 3 foot cable Monocrystalline panels have the highest energy efficiency and are space efficient for the power they output