Panasonic Panasonic SolarSmart Portable Solar Power for Mobile Devices - Solar Chargers - Retail Packaging - White/Black Conveniently charges smart devices and audio/video players using solar power Provides up to 100 hours of emergency flashing LED light, 60 hours of light on low level, and up to10 hours of powerful LED light on the high setting Charges eneloop AA Ni-MH rechargeable batteries (included) using HIT solar panel technology Can be charged from a laptop computer via the USB cable (when the sun is not shining) Indicator lights verify when batteries are fully charged