The self-sustaining Solar Lantern converts light into power for charging modern smartphones and provides light when there isn"t any. Opening the lid exposes two solar panels that charge up internal batteries (included) which will power the LED lantern. Great for Emergency kits, camping, boating, at the cabin, and to keep in car emergency kits. Features: On/Off switch fully adjusts brightness Charging station for smartphones and mp3"s Lightweight, durable, easy to use, and safe for children Up to 10 hours of LED use off of a full charge 2.2 Watt dual array solar panel 110V/220V AC charger for wall use 5-1.2 V rechargeable batteries 8 LED lantern lights (100,000 hour life)