Description:-Name: Solar Panel Battery Charger; Material: Solar Cell Panel-Output: 4V/250mA; Power: 1W; Conversion efficiency: ‰¥20%-Design for charge 2pcs AA Batteries and 2pcs AAA Batteries.-Light and small design, easy to take and carry, durable, long lifespan.-Perfect for travel, ship, simple to use, in case of emergency.Specification:Size: 115x68x25mm/4.52x2.67x0.98inchPackage Includes:1 Piece Solar Panel Battery ChargerNote:Please allow slightly difference due to manual measurement. Color may be slightly different since different monitor.