GSM CYC-SOL2W 2 Watt 12 Volt Amorphous Solar Panel Battery Maintainer, Black Top of the Line GSM Product Solar Panel Cyclops AMORPHOUS SOLAR PANELS CYC-SOL2W Solar Panel Prevents natural drain of batteries No tools required, plugs directly into vehicle's 12V power socket Weather resistant Maintenance free operation Amorphous solar panel efficiently charges in all weather conditions including cloudy days