Meet the Lumir K lamp: a LED lamp that runs for a month on 1L of cooking oil. You can use olive, canola, or any other cooking oil to get started. Lumir K converts thermal energy of cooking oil into electricity and is 100x brighter than a candlelight.
More gadgets like this: here
This fascinating project is getting funded on Indiegogo. Expected to ship in September.
**Disclaimer: Our posts may feature aff links. As an Amazon Associate, we earn from qualifying purchases. Please read our disclaimer on how we fund this site.