WaterLight: Portable light converts salt water into electricity

Colombian renewable energy startup E-Dina has developed a portable lantern that converts salt water into electricity . Known as WaterLight, the device requires 500ml of saltwater – or urine in emergency situations – to emit up to 45 days of light. The portable light was developed as a more reliable alternative to solar lamps in off-grid communities. It can also be used to charge a mobile … Continue reading WaterLight: Portable light converts salt water into electricity