Model NO. ：MD-SLB-7M10B

Solar panel:Polysilicon 5V 6V 

USB assisted charging: 5V/1A 

Working current : 260mA 280mA 

Operating voltage :2.9V-3.1V 

Solar panels power：2.7W-3W

System voltage:3.7V 

Open circuit voltage :4.2V 

Short circuit current : 600mA 

Battery number : 18650 Battery 1800mAh*2 

Working time(full charge): 8-10hours

Solar panel size：205x135x70mm