9W 5V Solar Panel Charger Foldable Solar Charger Outdoor Folding Mobile Phone Power Bank with USB Ouput Portable Battery

s Colour Black Size 15.5*9*3.4cm Battery type No batteries Output 5V1A Packing list Charging board*1 Compass*1 Instruction*1 ? The junction box is not waterproof. Please keep it dry. Smart charging technology-The built-in smart IC chip can intelligently identify your device and maximize the charging speed while protecting your device from overcharging and overloading. The charging current of the USB port (maximum 5V DC for each port 6A overall) will be automatically adjusted according to the sunlight level. High conversion efficiency-It is made of high-efficiency solar array which converts up to 21.5-23.5% of solar energy into free energy.