Model Number: LET54BH Use: Mobile Phone Type: Solar Place of Origin: Guangdong, China (Mainland) Color: black Certifications: CE FCC ROHS Safety protection: OVP ,ODP ,OCP ,SCP Cell type: Lithium polymer battery High efficiency solar panel capacity: 5.5V/ 620mA Self-charging time: 12 hrs (by laptop); 5 hrs (by 5V/1A travel charger); 10-12 hrs via solar panel: 10-12 hrs (via solar panel, under full sunlight condition) Lithium polymer battery capacity: 3.7V/6,000mAh Input: 5V/1A Output: Micro USB cable: 5V/1A;USB port1: 5V/2.1A USB port2: 5V/1A