Horizon is introducing its first series of renewable energy storage solutions - our first item is the SUNBOX USB: The unit is able to power a bright evening light (included) for up to 11 hours. The self-regulated system will charge its battery automatically when sunlight is available, no matter how strong or how weak the sunlight is. The kit is ideal as a basic affordable off-grid power supply for use in developing rural areas where electricity is not available, such as in emergency situations, for emergency relief as well as for remote recreational activities. The solar panel is waterproof and can be mounted on the roof of a small house or tent while the SUNBOX conrol unit can be attached to an indoor wall from where it will switch on when evening comes. The product also includes multiform cell phone charging tip adaptors and a rechargeable AA battery pack, which can be charged by the SUNBOX system. Since the SUNBOX offers 2 USB ports, it can also be used to charge any USB devices including most cellphones, MP3 players, Ipod, Iphones and more. The two rechargeable AA batteries can be used for small radios, flashlights and any other device that runs on AA batteries.