A. Sleek and stylish with automatic charging and discharging identification function. Simple to use, synchronous rectifier output and higher efficiency reaching 90% -92.6% with automatic over-current, short circuit, undervoltage protection makes longer usage. Built-in 5200mA high capacity and 18650 battery, safe using and supply power for a long time.
B. One USB output with IN charging port and four blue led power indicators, a white LED headlamp.
C. Please charge when the nearest blue led light from power button flash, showing low battery, All charging four led lights when charging is complete, unplug the plug
It can give usb light, usb fan power supply, also give your phone powered battery.
Carton size: 63.5*55.5*38CM