Tomshoo Portable Solar Panels Kit 20W with 300W Controller 12V Supply USB Charging Interface Solar Board Waterproof Solar Cells for Phone RV Car

Made of premium-quality materials, environmentally friendly, durable and delicate. It has a high conversion rate. Dual-output solar panels with USB interface to meet any of your requirements. Environmental protection and pollution-free, realizing conversion of solar energy to electric energy. It has a wide of applications and can be used in many places, such as automobiles and small household appliances. A solar panel is a device that directly or indirectly converts solar radiation into electrical energy by absorbing sunlight. Compared with ordinary batteries and rechargeable batteries, solar panels are more energy-efficient and more environmentally friendly.