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:5.5V160mA3.The built-in high capacity rechargeable polymer lithiumion battery: 2600mAH 4.Output voltage: 5PIN 4.5V/5.5V/6.5V/9V(Optional) 5. max output current: 5PIN 500mA 6.Time for charging a mobile phone: about 60 minutes(the time may vary slightly depending on mobile phones lf different brands and models) 7.Time for charging the built-in battery through solar energy: 10-15hours 8.Time for charging the built-in battery through a compute of AC adaptor:4-6hours 9.Machine Weight:110g 10.Overall Size:12.2*7.6*1.2cm 11.Color:Silver / blue / red / black 12.Packaging:Neutral Package Box 13.Accessories:AC Adapter1PC,AC Input Line1PC,Charger Output Line1PC,Plug Adaptors 5PCS(for Motorola,Samsung,Nokia,Sonyericsson)