SALt Lamp

Lamp powered by salt water

SALt have created a lamp that runs up to 8 hours on a glass of water and 2 tablespoons of salt


The award winning start-up company SALt (Sustainable Alternative Lighting) have created a lamp which completely eliminates the need for electricity – it runs on nothing more than a glass of water and two tablespoons of salt!

The lamp was originally designed in 2014 as a much needed solution to the problem of artificial lighting in the Philippines. Many of the islands do not have any access to electricity and currently rely solely on Kerosene lamps to light their homes in the evenings. The Kerosene poses a danger of both the long term effects of lung disease and the potential risk of fires. SALt hopes to remove this danger whilst providing a much more accessible and affordable energy source. In fact the lamp is so resourceful that it can even be powered by water straight from the ocean so no need to supply extra salt. The lamp runs for up to 8 hours before needing to be refilled and has an estimated shelf life of 6 months.

SALt have announced their plans to begin selling the lamps commercially this year but are yet to agree on a retail price. The company have stated that they will prioritise building lamps for their target communities and for the communities of the NGOs and foundations who partner with them before releasing a commercial product online.


For more information on SALt visit

Written by Naomi Smith