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Gravitational lamps work without the mains

31.01.2019

The Gravity Lamp is the brainchild of London-based inventors Jim Reeves and Martin Riddiford. Its device uses a simple system of levers and weights to drive a miniature electrical generator. The new device is designed to help 1,3 billion people living in remote and poor regions without a developed electricity grid.

The peculiarity of the device lies in the fact that GravityLight does not require the usual sources of energy to operate. The light bulb burns thanks to a weight of 12 kg, which must be hung on a special hook. The load will gradually lower under its own weight, providing the lamp with energy for a little over 20 minutes. After that, you must repeat the operation so that the light comes on again. In fact, the device implements the same principle of operation as in a conventional watch with weights.

The developers of the device are confident that it will find wide application in poor African countries. The first prototype of the device was tested in 26 different countries last year and received high praise from the first users. According to the creators, the "gravitational" light bulb will not only bring light to homes, but will also allow many families to significantly save on the purchase of kerosene for lighting. The authors of the project pay special attention to Kenya: in this country they plan to establish an enterprise for the production of GravityLight lamps.

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