1.High solar energy convert efficiency: over than 15% 2.Solar panel: polycrystalline silicon 3.Power: 2Watts 4.Output voltage: 5.5V 5.Output current: 360mA "6.Charging time: about 4 hours(the time is a little different for different mobile phone)" 7.open size: 260*123mm 8.fold size: 143*123*20 mm