1) Power: 21W (max)
2) Solar panel: Crystalline Silicon
3) Output voltage: DC 18V / 1.1A (max); USB: DC 5V/3.8A (max)
4) Expand Size: 71.5cm x 46.5cm x 0.3cm
5) Folding size: 23.5cm x 18cm x 5.5cm
6) Weight: 1.1kg
7) Output: DC Plug
8) High efficiency: 15% - 17%
9) Accessories: laptop charging head a group, power cable