They were first demonstrated as street illumination during the Paris Exhibition of 1878, notably on the Avenue de l'Opéra, in Place du Theatre Français (now Place André Malraux) and in Place de l'Opéra. The 64 lamps had four to twelve candles each, connected in series and were enclosed in globes of enamelled glass. In December of the same year Yablochkov candles were installed along the Victoria Embankment in London.