HydroGlo - Water-Powered Emergency LED Light - 400 Hours!
No matter whether there's a power outage, you're out camping in the great outdoors, are broke down on the side of a lonely road in the middle of the night, enjoy off-grid living, or just want to be prepared for any kind of emergency, then check out this cool new HydroGlo. This highly portable emergency light requires only salt and water (or saltwater from the sea) to continuously illuminate its LEDs for up to 400 hours (16+ days) without the need for batteries, solar panels, or manual cranking.
To use, just add table salt, fill with water, seal, and then give the pouch a shake to activate the light. The way it works is that it produces an electric current to power the LEDs through a simple electrochemical reaction between the electrolytes in the water and metal electrodes. It stores for up to 5 years, has a handle for carrying like a lantern, and can be reused multiple times. If you're a teacher, it might also be interesting to demonstrate to your students how this technology works in a classroom setting as well. Cool, huh? 🧂💧💡
