Function: 1. High Efficiency: Equipped with a solar and high efficiency solar charging circuit, the charging efficiency is high and the charging is stable. 2. Easy to Carry: Small and portable, the mini solar panel is easy to carry and install, suitable for outdoor bikes, mountain climbing, hiking, etc. 3. Feel the joy of DIY: you can use mini solar cells to build your own solar powered models, solar powered toys, solar displays, solar powered string lights, electric toys etc. 4. Main features: 2 pcs. Polycrystalline solar panels with 2V power, 0-210mA working current and 40x40mm / 1.6x1.6 inch size, will surely meet your DIY needs. 5. Wide Application Range: Perfect for solar garden lighting, small home lighting systems, solar street lamps, various low power electrical appliances such as emergency lights, advertising lights, electric fans etc. Specification: Item Type: Micro Solar Panels Material: polycrystalline silicon Product Color: As shown in the pictures Product size: 40 x 40mm / 1.6 x 1.6 inch Product Weight: Approx. 14g/0.5oz Working current: 0-210MA Voltage : 2V Package List: 2 x mini solar panels