Ideal for off-grid 12V battery charging systems and a variety of DC applications, it is designed to maintain 12V batteries used in cars, recreational vehicles, cabins, boats, battery-powered doors, backup power, and remote power supplies. Solar panel kit packaged with 20W solar panels, 12V/24V solar charger regulator controller and two 6.5ft cables with alligator clip and O-ring terminals for battery charging connections for easy securing and installation. Combined with 10A solar charger controller, it can protect the battery from overcharge, overvoltage, discharge and short circuit. Reverse connect protection fully protects the battery. Small and portable, suitable for camping or other outdoor activities. Easy to install, pre-drilled holes in the back of the panel for quick installation and fixation