1. Solar Panel(mono or multi-crystalline): The maximum of battery power: 1.54W 2. Operating Voltage: 5.5 V(MAX) 3. Charging Current: 280MA (MAX) 4. Battery Capacity: 2800MAH 5. Output Voltage: 5.6V 6. Output Current: 1A (MAX) 7. Charging Time: 8-10HRS (IRRADIANCE: 100MW/CM2)3-4HRS(WALL OUTLET 5V/100MA) 8. Dimensions: 136*79*24MM 9. Case: Fire Proof Plastic(ABS) 10. Input Interfact: DC Interface 11. Output Interface: USB Interface 12. LED Color: RedOrangeGreen, Little LED light show the different recharge capacities with red, orange, green. 13. Head lamp: Smaller Led Light 14. Control Switch: LED/OFF/ON Recharge for Electronic digital mobile equipments with the charging voltage from 4.5 V to 9V (Output voltage switch: 4.5V/5V/6.3V/9V