Overview: Extra-efficient solar panels for a rapid charge With vogue shape, simple but full of energy Lightweight & portable for use anywhere, & anytime Solar Panel (mono or multi-crystalline): 5.0V/35m A Charging voltage/current: 5V/500m Ah Output voltage/current: 5V/500m Ah Li-ion rechargeable Battery: 3.7V/500m Ah Super long standby time, current consumption lt;140u A Charging time:1) Mobile working time after full charged:1-2 hours 2) 'self-charging through Solar Panel:14-16 hours (under full sunlight conditions)3) Charging time through original mobile adapter:1-2 hours With charging & discharging indication lights Constant Volts:4.2 Volts Specification: Weight Approx:28.4g Size Approx:6 x 4 x 1.4