ISolar Technology, deliver the fastest chargeIt can automatically adjust the current and voltage to achieve maximum power, delivering its fastest possible juice.Best designCompact size design for portability, with the free hook, you may just hang it on your bagpack when outdoors.Wide Compatibility18V DC port: charging 18V1A laptops, 12V car battery and other 18V 1A DC-powered devices.5V USB port: smartphones, tablets, external battery packs, or any other 5V USB devices.Attention1. please check the model, size, voltage and power of your original adapter to ensure compatibility before using. Please close the laptop firstly before charging, solar panel is only design for emergency, not a primary source of charging for laptopSpecification* Solar Panel Peak Power: 21W* Transformation efficiency : >22%-25%* Output: DC:18V*1A /USB:5V*2A* Compact Size: 300x 160 x 20mm/ 11.8 x 6.2 x 0.7inch* Opened Size: 640 x 300 x 10mm/ 25 x 11.8 x 0.35inch* Weight: 0.48kgPackage including* 1 x Solar Panel Charger* 1 x DC Connect Cable* 5 x Laptop Connectors* 1 x USB Cable* 2 x Metal Hooks* 1 x User Manual* 1 x Retial Package