Nature Power 50262 280-Watt Monocrystalline Solar Powered 12-Volt Battery Charger Set Includes 2 140-Watt Panels High efficiency monocrystalline solar panels producing up to 260-watt or 15.94-amp per hour of sunlight Ideal for charging 12-volt batteries to provide power in remote locations or in emergencies, connect multiple panels for faster charging Corrosion resistant aluminum frames and sealed against moisture these solar panels are rated for outdoor use Plug and play connections for fast and easy set up Optional tilt mount system available