Feature:1. Multipurpose: With multiple usage, great for small home projects, science projects, electronic applications, charging small batteries and other DIY projects with solar power.2. Stable Performance: 5V working voltage, 50mA working current, can charge 3.7V battery, suitable for solar toys, solar lights, solar displays, and charging small DC batteries.3. Weather Resistant: This solar panel can be used in the sun, weather resistant, weatherproof design to withstand harsh weather conditions, more durable, long lasting and economical.4. Charging Application: 1W solar battery, charging for home lighting and various low power devices, scientific projects, solar water pumps, small solar systems, etc, safe and easy to use.5. Electric Energy Conversion: Absorb sunlight and convert it directly or indirectly into electric energy through photoelectric or photochemical effects, ideal for scientific research projects.Specification:Item Type: Solar CellMaterial: Monocrystalline SiliconSize: Approx. 107 x 61mm / 4.2 x 2.4inWeight: Approx. 15g/0.5ozPower: 1WVoltage: 5VWorking Current: 50mAUsage: Charge 3.7V BatteriesFeatures: No Power Storage Function.Package List:1 x Solar CellNote:Manual measurement, please allow some errors.