Be Prepared Solar offers up this green solution to emergency power. It is economically priced, offering power output and solar power on par with its competitors at a fraction of the price. The no-frills approach does have its downsides. The battery unit has an industrial, handmade look to it and is also very heavy (though it appears wheels come standard). The instructions are also somewhat frequently cited as difficult to understand, and while there are several 110-volt plugs as well as a single USB port, there are no sockets for smaller-wattage devices; the people at Be Prepared Solar seem quite willing to build custom models to rectify that, should it be an issue.