Lamp Runs For 8 Hours On Water and Salt

A new cost effective lamp that burns for eight hours at a time, running on nothing but a glass of water and two tablespoons of salt has been developed by a start-up in the Philippines.

The Sustainable Alternative Lighting or SALt lamp will also be able to generate enough energy to charge a smartphone through a USB cable, while also lighting up the room.
The lamp works with a galvanic cell battery, which consists of an electrolyte solution – the salt and water – and two electrodes.

“There are over 7,000 islands in the Philippines and most of these islands do not have access to electricity. We want to eliminate the sustaining cost in areas that rely on kerosene/battery powered lamps and candles as their main source of lighting,” the SALt team said.