Feature: 1. [Multipurpose] Great for small home projects, science projects, electronic applications, charging small batteries and other DIY projects with solar power. 2. [Widely Applicable] Contains 10 small solar cells in total, suitable for solar toys, solar lights, solar displays, and charging small DC batteries, very practical. 3. [Weather Resistant] This solar panel is waterproof and weather resistant designed to withstand harsh weather conditions, more durable, long lasting and economical. 4. [Charging Application] Charging for home lighting and various low power devices, solar water pumps, small solar systems, etc, ideal equipment for scientific research projects. 5. [Working Principle] A solar panel is a device that absorbs sunlight and converts it directly or indirectly into electrical energy through photoelectric or photochemical effects. Specification: Item Type: Small Solar Cell Material: Polysilicon Size: Approx. 53 x 30mm / 2.1 x 1.2in Weight: Approx. 48g/1.7oz Power: 0.15W Voltage: 5V Working Current: 300mA Features: No Power Storage Function. Package List: 10 x Small Solar Cell Note: Manual measurement, please allow some errors.