1High Efficiency: Equipped with solar and high efficiency solar charging circuit, the charging efficiency is high and the charging is stable. 2Easy To Carry: Small and portable, the mini solar panel is easy to carry and install, suitable for outdoor bicycles, mountaineering, hiking, etc. 3Experience Fun of DIY: You can use the mini solar cells to build your DIY solar powered models, solar toys, solar displays, solar powered string lights, electric toys, etc. 4Main Features: 2pcs Polycrystalline solar panels with 2V Power, 0?210mA working current, and a size of 40x40mm/1.6x1.6in, it can certainly meet your DIY needs. 5Wide Range of Application: Perfect for solar garden lighting, small household lighting systems, solar street lights, various low power electrical appliances, like emergency lights, advertising lights, electric fans, etc.