With the Sandberg Solar Charger, you always have power when the sun is shining. The efficient 30W panels allow you to connect and charge smartphones, tablets, or your power bank directly from the panel's control box. Practical carabiners are included, so you can easily attach the panel to your backpack or tent. This provides green energy for your adventures away from power outlets. The panel is waterproof, made from durable lightweight materials, and weighs only about 700 grams.