The Solar Cell Phone Charger is easy to use & a potential life saver! Just flip open the casing to reveal the solar panels within. Once charged, plug in your phone. No manmade power source required! • iPhone connector (Optional for additional cost) • Solar Panel (mono or multi-crystalline): 5.5V/140mA • USB charging cable: 5V 400mA • Li-ion rechargeable Battery: 3.7V/1200mAh • Output volt/current: 6V/300mA • Super long standby time, current consume<20uA • Charging times: - Mobile phone: 2.5 - 3 hours - Lithium battery (under full sunlight conditions): 10-12 hours - Lithium battery: 3-4 hours (use USB charging cable) • Indication: charging and discharging state • Protection: reverse current protection circuit integrated to prevent batteries from being discharged. • Constant Volts: 4.2Volts