1. Equipped with Voltage Regulator to ensure stability
2. Compact size design for portability, with the free hook, you may just hang it on your bagpack when outdoors
3. Solar Panel Peak Power: 21W
4. Output: DC:18V 1A, USB: 5V 2.1A
5. Compact Size: 300x 160 x 20mm
6. Opened Size: 640 x 300 x 10mm