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:5.5V/75mA 3.The built-in high capacity rechargeable polymer lithiumion battery:1000mAH 4.Output voltage:5.5V 5.Output current:300-600mA 6.Time for charging a mobile phone: about 120 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:6-10hours 8.Time for charging the built-in battery through a compute of AC adaptor:3hours 9.Accessories:Charger Output Line1PC,AC Input Line1PC,Plug Adaptors 5PCS(for Motorola,Samsung,Nokia,Sonyericsson)