What would you do with a cup of water and two spoons of salt?
Let me tell you a high end answer: I will make it light emitted. That is salt water light—SALt.
RUIDesign team has considered that it is difficult for people in very remote and poor areas in China to live electrified lives. Therefore, they designed this water and salt-powered LED light. It can be used for not only lighting but also power charging. Seawater applies to this light as well.