a shiny new factory at the outskirts of st petersburg aside from being a happy homecoming the l.e.d. assembly line launches a big step in russia's attempts to modernize its economy to go green at the same time. the capacity of an affection through point is the highest or you know do business today in russia in china's countries and in eastern europe we can produce today thirty million. a month. it's. l.e.d.s. good latest in a long line russians big and powerful made some of the first strides in constructing the incandescent lamps in the seventy's using carbon filaments renowned american inventor thomas edison introduced improved filaments extended to relatively short life of electric bulbs first to forty then to over one thousand hours by the early twentieth century the tungsten filament light bulbs still in use today were already emerging fluorescent lamps appeared in the thirty's and lamps at the end of the one nine hundred fifty s. and high pressure sodium street lighting in the sixty's compact fluorescents or c.f.l. were pioneers in the seventy's and are still a popular option as we move