Yablochkov candle

The Yablochkov candle, an arc lamp invented by the Russian engineer Paul Yablochkov, was used for street lighting in Paris and other European cities from 1878.

…Russian electrical engineer, introduced the Yablochkov candle. This was an arc lamp having parallel carbon rods separated by porcelain clay, which vaporized during burning of the arc. Alternating current was used to ensure equal rates of consumption of the two points of the rods. This lamp was widely used in…

…and inventor who developed the Yablochkov candle, the first arc lamp that was put to wide practical use and that greatly accelerated the development of electric lighting.