Soladec Hybrid All-in-One Portable Solar Power Charger and External Battery Pack with Integrated Ultra High-Flux LED Light for iPod, iPhone, iPad and Other USB Devices Latest generation ultra efficient monocrystalline solar cell module. Charge most of USB-compatible portable gadgets Built-in high-flux LED lamp for indoor/outdoor activities and SOS use. Built-in rechargeable lithium battery will hold a charge for up to 2 years, making it suitable for emergency use Can be charged from sunlight, USB port or a wall plug