With the Sandberg Solar Charger, you have power wherever the sun shines. The highly efficient panels generate 40 W, allowing you to charge your smartphone, tablet, or power bank directly through the control box of the panel. Easy-to-mount carabiners are included, so you can easily attach it to your backpack or tent. This is green energy for all your outdoor adventures, far from the power grid. The solar panel is waterproof, well-made, and super lightweight at just 900 grams.