Features:

Made of high quality material, durable to use.
High efficiency conversion rate, up to 22%~25%.
Industry-leading efficiency, enhances charging speed and portability.
ISolar Technology, automatically adjust the current and voltage to achieve maximum power, delivering its fastest possible current up to 2.1Amp per port.
Detect the charging devices and deliver the largest current.

Use rain resistant solar panels, durable and safe to use. 

Built-in smart chip, can prevent short circuit, and with overload protection function. 

Compact size and portable, suitable for long-distance travel, camping, mountaineering,etc 

Specifications:

Number of Cells: 3 solar panels 

Size: Open Size: 460*300*5mm / Folding Size:150*300*30mm 

Material: Sunpower 

Transformation efficiency: >22%-23% 
Output: 5V*2.1A(Max)

Max. Power: 21W 

Package List:

1* Solar Charger 

1* Carabiner 

1*USB cable 

1* User Manual