√Super Bright LED Light: Built-in 21 LED lights，great illumination, when you are traveling, camping, especially in dark situations or at night, it is useful and helpful for you to light up, this solar battery charger is a trustworthy choice. √Multi-port USB Design: 3 USB port for charging, you can use the 3 ports fully to charge your devices simultaneously, the design can avoid the situation that the USB ports are not enough for your devices. √Two Way of Charging: Two alternative charging manners, making charge by adapters with blue pilot lamp on, while charging via sunlight with green pilot lamp on, the different pilot lamp can make you recognize it is the adapter charging or the sunlight charging.