Quickman Ultra-Slim Portable Solar "10000mAh" Power Bank w/ Dual-USB - Black
Touch button design; Solar power panel 5.5V / 350mA; Power: 1.5W; Using polycrystalline silicon solar panel; Light energy conversion rate: 18%; Supports charging for two devices at the same time; Solar powered charging time: 15~18 hours; Charging time from computer or AC power adapter: 4~5 hours.