1)Use High efficient monocrystalline silicon panel,High solar energy convertion Over than 16% 2)solar panel is 0.8W 3)In builtrechargeable battery capacity is750 mAh 4)output voltage is 5)output current is500 mA 6)Charging time for the mobile phone is about 90 min(some little difference for different mobile phone) 7)Charging time for the Lithium polymer battery inside using USB charging cable in computer or AC adapter is about5 hours 8) Charging time for the Lithium polymer battery inside using the solar panel: about 20-25hours 9) Individualsize :13.5x8.5x1.4cm