Cooking oil is very cheap and easy to come by, even in developing areas, and with no battery the lantern doesn't need recharging. It's not dependent on the weather like solar devices.

The lamp is actually a pretty interesting design, using wax and Plaster of Paris to create a pewter "flower". It also uses recycled fat—which you can get from cooking some bacon, sausage, or ...

You'll have a working oil lamp that'll last for hours, and your home will be gifted with the smell of cooking bacon. Admittedly, the bacon fat lamp requires a bit more prep than the tuna can lamp ...

“Olive, canola and sunflower oil, it doesn’t matter what kind of cooking oil is. Without any batteries or external power supply, only with tiny flame which is as big as candle, Lumir K gives ...