The Sandberg 100W Lightweight solar battery charger is a portable, foldable high-performance solar charger designed for outdoor use, such as camping, hiking, and emergency power needs. It uses monocrystalline silicon photovoltaic cells for efficient energy conversion and features a lightweight, foldable design for easy transport and quick setup. The product is identified with SKU and MPN 421-45 and EAN 5705730421457. It is a product of Sandberg, a European brand known for accessories and portable power solutions.