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 15% 2.Solar panel specification:5.5V/80mA 3.The built-in high capacity rechargeable polymer lithiumion battery:1000mAH 4.Output voltage:5.5V 5.Output current: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:5hours 9.Overall Size:13.6*8.5*4.2cm 10.Machine Weight:140g 11.Color:Red / black / blue 12.Packaging:White Box 13.Accessories:Charger Output Line1PC,Plug Adaptors 5PCS(for Motorola,Samsung,Nokia,Sonyericsson)