Our Easton PBOX Power Bank is a solar power supply system comprised of a built-in lithium battery, a controller, and a standard USB port. It energizes through the external solar panel, providing users with a complete set of solar energy solutions for power generation, storage, and power supply. It is also easy to use and hard to damage. The Easton PBOX Power Bank is equipped with a 20-60W solar panel and a 77Wh-308Wh battery capacity, which is able to meet most needs. Users can easily charge their LED light, fan, cell phone, IPAD, MP3, laptop or any other small household appliance through the USB/DC inverter port. It is not only an emergency power source but also a system that can meet basic household electricity demands in an area without easy access to electricity.