Item Type: Solar Panel_x000D_Product Material: Polysilicon_x000D_Product Specifications: Diameter: Approx. 80mm / 3.1in_x000D_Power: 0.5W_x000D_Operating Current: 0 to 66mA_x000D_Short Circuit Current: 80mA_x000D_Working Voltage: 6V_x000D_Short Circuit Voltage: 6.5V 1High Conversion Rate: This solar panel uses right angle polycrystalline silicon cells, which have a high conversion rate. 2Good Light Transmittance: The round solar panel has good light transmittance and can effectively absorb solar energy. 3Waterproof: It is sealed with a waterproof sealing strip, which is waterproof and can be DIY wiring. 4Chip Protection: The solar circular panel is encapsulated with epoxy glue, which effectively provides chip protection. 5Characteristics: It has the characteristics of light weight, easy to carry, high stability, good durability and long service life.