Yunxwd Portable Solar Charger Board 2.5W Solar Panel 188x78.5mm Solar Charging Board 3.7V‑5V Battery Charger High Conversion Efficiency for Greenhouse and Family

High Effiency: High conversion efficiency, good output efficiency, it can effectively convert solar energy into electric energy Durable: It has strong resistance, can withstand different harsh environments, and has good waterproof performance. Light and Portable: The charging board is light in weight and easy to carry. High stability and good durability Easy to Use: Just place the solar charging board in the sun so it can work normally, which is convenient and fast