1.Mono-crystalline silicon wafers or multi-crystalline silicon wafers with high conversion efficiency are used,which enables a high solar energy conversion efficiency of over 16% 2.Solar panel specification:5.5V380mA3.The built-in high capacity rechargeable polymer lithiumion battery: 2600mAH 4.Output voltage: OFF/5.5V/6V(Optional) 5. Output current: 350-800mA 6.With 4 LED power indicator 7.Time for charging a mobile phone: 1-2hours 8.Time for charging the built-in battery through solar energy: 6-8hours 9.Time for charging the built-in battery through a compute of AC adaptor:3-5hours 10.Machine Weight:210g 11.Overall Size:13.9*7.9*2.4cm 12.Color:Blue / black 13.Packaging:Neutral Package Box 14.Accessories:AC Adapter1PC,AC Input Line1PC,Charger Output Line1PC,Plug Adaptors 5PCS(for Motorola,Samsung,Nokia,Sonyericsson)