With the Extreme solar charger, you have the opportunity to charge your small devices with free solar energy in the future. The powerful and robust solar cells allow for a charging current of 1000 mA with optimal alignment, so you can charge either a power bank or a USB-chargeable device directly via the USB output. The solar charger features MPPT technology, which generates electricity even in poor lighting conditions. Ideal for daily use, leisure, and hobbies.