1.Mono-crystalline silicon wafers or multi-crystalline silicon wafers with high conversion effciency are used,which enables a high solar energy conversion effciency of over 15% 2.Solar panel specification 5v/80mA 3.The built-in high capacity rechargeable polymer lithiumion battery 1350mAH 4.Output voltage 5.0V-5.5V 5.Output current 800mA-1000mA 6.Charging time for mobile phone:about 60 minutes(the time may vary slightly depending on mobile phones of different brands and models) 7.Time for charging the built-in battery through solar energy:8-10 hours 8.Time for charging the built-in battery through a computer of AC adaptor:about 4 hours 9.Overall size 9.4*4.3*1.1cm 10.gross weight 65g 11.Accessories AC adaptor 1PC,AC input line 1PC,plug A daptors 4PCS(FOR MOTOROLA,SAMSUNG,NOKIA)