Peak power supplied by photocell: 1.54W
Operating voltage: 5.5V (max)¡¡¡¡
Charging current: 280mA (max)
Battery capacity: 2800mAh
Output voltage: 4.5V-9V (adjustable)
Output current: 1A (max)
Charging time: 8-10 hours (illuminating scope: 100mW /Cm2)
¡¡¡¡¡¡¡¡¡¡¡¡ 3-4 hours (indoor power: 5V /500mA)¡¡¡¡
Discharging time: 2.5 hours (the output: 5V /500mA)

Spec:
Input interface: DC interface
Output interface: USB interface
Material: Plastic
Intelligent LED display: 3 indicators (red, orange, green) for status of remaining power and charging.
Flash light: LED