1. 
   Yablochkov candle
   (from the article `arc lamp`) ...of 2,000 cells to create a 100-millimetre (4-inch) arc between two charcoal sticks. When suitable electric generators became available in the late ... ...century. These arc lamps, as they were called, were reliable but cumbersome devices that were best used for stree...
   Found op http://www.britannica.com/eb/a-z/y/1
   
   
2. 
   Yablochkov candle
   A Yablochkov candle (sometimes electric candle) is a type of electric carbon arc lamp, invented in 1876 by Pavel Yablochkov. ==Design== A Yablochkov candle consists of a sandwich of two long carbon blocks, approximately 6 by 12 millimetres in cross-section, separated by a block of inert material su...
   Found op http://en.wikipedia.org/wiki/Yablochkov_candle
   
   

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