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A variety of sizes, shapes and colours can be seen among these lights. Holiday lighting technology has been subject to considerable development and variation since the replacement of candles by electric lights. [citation needed] While originally used during the Christmas holidays as Christmas lights, modern electric light arrays have become ...
The first known electrically illuminated Christmas tree was the creation of Edward H. Johnson, an associate of inventor Thomas Edison.While he was vice president of the Edison Electric Light Company, a predecessor of today's Con Edison electric utility, he had Christmas tree light bulbs especially made for him.
Pre-lit tree. A pre-lit tree is a convergent product of Christmas lights and an artificial Christmas tree. The product is an artificial fir tree that comes pre-wired and strung with lights, which cannot be removed and are usually embedded within the artificial branches. The product can be sold as a kit - the user assembles the tree and plugs it ...
The National Christmas Tree and Pathway of Peace trees consumed 7,000 watts over four weeks in 2010, at a cost of about $180. [238] (The National Christmas Tree alone consumed 2,000 watts in 2011.) [212] The lighting scheme used 60,000 LED lights and 265 spherical ornaments in 2013, [220] [221] while consuming just 5700 watts. [220]
Weatherproof casings are available for outdoor spot and flood fixtures. 120 V sizes: PAR 16, 20, 30, 38, 56 and 64 230 V sizes: PAR 16, 20, 30, 38, 56 and 64 Available in numerous spot and flood beam spreads. Like all light bulbs, the number represents the diameter of the bulb in 1 ⁄ 8 of an inch. Therefore, a PAR 16 is 51 mm (2 in) in ...
Gas lamps gradually started replacing oil street lamps in the United States, beginning in the first quarter of the 19th century. [3] The first street in the world to be illuminated by gaslight was Pall Mall in London, starting in 1807. [1][5] The first US city to use gas street lights was Baltimore, starting in 1817. [4]
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