Credit: SALt

SALt—which stands for "sustainable alternative lighting"—is a new travel lamp that runs completely on seawater (or a saline solution if you're using it off-shore). A team from inventors from the Phillipines came up with the idea to provide light and power during times of natural disasters. The design is also perfect for beachside campers and travelers ditching access to electricity to experience remote locations. Here's how it works: Fill the water chamber with one glass of saline solution (or water straight from the ocean) and the lamp will shine bright for eight hours. The entire design is focused on sustainability, so when used responsibly the lamp can be used every day for up to one year without needing a repair.

It gets better: In moments of need, you can also charge your smartphone via USB. Currently, the lamps are being produced for targeted, disaster-prone areas, but you can sign up to receive updates on the project on the SALt website.

Erika Owen is the Audience Engagement Editor at Travel + Leisure. Follow her on Twitter and Instagram at @erikaraeowen.