The Sunway Solar Panel 8 Watt Battery Trickle Charger and Maintainer is a portable solar panel designed for outdoor use. With a monocrystalline technology and off-grid system configuration, this solar panel has a power source of 12 volts. It features MPPT (Maximum Power Point Tracking) charging mode, making it efficient for charging and maintaining batteries. Suitable for various applications such as recreational vehicles, agriculture, marine, camping, and automotive, this solar panel is a reliable choice for alternative energy supplies. 12