An excellent item worthy to be bought!The 4200mAh Intell Solar Power Charger for Cell Phone Black eliminate the traditional need of charger， charge your mobile phone， digital (photo) camera， MP3， MP4， MP5， PDA， radio， portable CD， etc anytime anywhere during day time by using solar energy. Save power and protect the environment， keep you stay ahead of fashion. Good choice for you! Please note Charger Interface.                                    Features            Smart MCU control， intelligent design and five protections (over-charging， over-discharging， over-current， short-circuit， over-heat) to make sure safetyEspecially suit for emergency situationsIt is especially helpful when you travel or fieldwork outside. The smart solar bank can provide a UPS power for your cell phone anytime anywhereHigh efficiency chargingEnvironment protection !#!amp!*! saving energyStylish !#!amp!*! Easy to carryEasy to use: No matter when and where， with the smart solar bank， you can charge your cell phone or other digital productSeveral different voltage options: <br>Output Voltage ranges: 4.7V 5.8V 8.4V 9V. With this ability， the smart solar charger can be widely usedHigh-brightness LED light: The high-brightness LED light can work over 100 hours， it is reliable and convenient to use in night and any emergency occasion                                                            Specifications            Solar panel Peek power    1.6W    <br>Volt    5V    <br>Input port    DC    <br>Output port    USB， 5P    <br>Li-Battery capacity    4200mAh    <br>Working temperature    10% ~ 60%    <br>Charged with solar power    14 ~ 20 hours (Solar light intensity: 1000V / m2)    <br>Current when charge by solar power    230mA ~ 300mA (Solar light intensity: 1000W / m2)    <br>DC input current    900mA ~ 1200mA (1A)    <br>Time of DC charge    3.5 ~ 5.5 hours    <br>Output current    400mA ~ 800mA (0.8V)    <br>Low battery indication    Red LED light flashing when battery power is insufficient    <br>                                                            Package Includes            1 x 4200mAh Intell Solar Power Charger1 x Chargers3 x Data Cables4 x Adapters                                                            Extra Info            Note: You could not charge the battery and the solar charger at the same time. Please fully charge the solar charger with the sunlight or computer first， then connect the solar charger with your phone to charge the phone battery.