Electric light by the first practical electric arc light in 1806. By the 1870s, Davy's arc lamp had been successfully commercialized, and was used to light many public spaces. The development of a steadily glowing filament suitable for interior lighting took longer, but by the early twentieth century inventors had successfully developed options, replacing the arc light with incandescents. The energy efficiency of electric lighting has increased radically since the first demonstration of arc lamps and the incandescent light bulb of the 19th century. Modern electric light sources come in a profusion of types and sizes adapted to many applications. Most modern
Sydney Electric Train Society collection with 85 and 86 class locomotives, one Bradfield and two Suburban power cars acquired from RailCorp and the only complete Sydney Monorail set.. The society publishes "Under the Wires", a bi-monthly magazine. Sydney Electric Train Society The Sydney Electric Train Society is a railway preservation society in Sydney, Australia. It specialises in NSW electric traction and particulary NSW electric locomotives. The Sydney Electric Train Society (SETS) was established in 1991. In January 1992, it operated its first tour with single deck stock across the CityRail suburban network, the last of which were about to be withdrawn. On 20th April