Angel ring / Public design

It is a solar flare for developing countries where solar energy is poorly maintained if it is difficult to obtain electricity.
An angel is formed with a curved ring, which makes it easier to use.
It can be stored and stored separately, and it can be used separately.
Light fixtures can also be used for desk use and use light bulbs.
It can also be used on the wrist if you can carry it on your wrist.
Buttons inside it can be turned on and off easily.