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In January 2011, the province of British Columbia banned retailers from ordering 75- or 100-watt incandescent bulbs. [82] Canada's Energy Efficiency Regulations are published on the Natural Resources Canada website. [83] The Canadian federal government banned the import and sale of 75- and 100-watt incandescent bulbs, effective 1 January 2014.
EISA 2007 set new performance requirements for certain common light bulbs, requiring that these bulbs become approximately 25-30% more efficient than the light bulbs of 2008 by 2012–2014. Overall, the intent of this was to bring into the market more efficient light bulbs.
The Phoebus cartel was an international cartel that controlled the manufacture and sale of incandescent light bulbs in much of Europe and North America between 1925 and 1939. . The cartel took over market territories and lowered the useful life of such bulbs, which is commonly cited as an example of planned obsolescen
Incandescent bulbs create illumination by running an electric current through a filament that heats it until it glows. Edison's first practical light bulb used a carbonized cotton thread for that ...
These types of bulbs are the most commonly available light bulb types as well as most popular right now. ... 7.0 magnitude earthquake hits off Northern California coast, tsunami warning issued.
Incandescent light bulbs consist of an air-tight glass enclosure (the envelope, or bulb) with a filament of tungsten wire inside the bulb, through which an electric current is passed. Contact wires and a base with two (or more) conductors provide electrical connections to the filament.
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Compared with an incandescent lamp, a fluorescent tube is a more diffuse and physically larger light source. In suitably designed lamps, light can be more evenly distributed without point source of glare such as seen from an undiffused incandescent filament; the lamp is large compared to the typical distance between lamp and illuminated surfaces.