Portable Socket / Portable Socket

We all use electricity everyday, and there’s always a need of using plugs, but we barely can find socket when we are outside.
Because of this, I replace electrical energy by using solar energy; storing up solar energy by portable socket so that using at outdoor.

Besides, the product has a bar which displays its energy status so that we can be informed.
Using energy which is from Nature can solve urgent problems the world now faces, for example, the global warming. This product is useful and Eco-friendly. Why not?