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Joel Solon Spira (March 1, 1927 – April 8, 2015) was an American inventor, entrepreneur, and business magnate.. He invented a version of the light-dimmer switch for use in homes around the United States and led his Lutron Electronics Company into the production of lighting controllers.
The toggle light switch was invented in 1916 by William J. Newton. [2] As a component of an electrical wiring or home wiring system, the installation of light switches is regulated by some authority concerned with safety and standards. In different countries the standard dimensions of the wall mounting hardware (boxes, plates, etc.) may differ.
The dimmer switch used in conjunction with a dimmable CFL must be matched to its power consumption range; [58] many dimmers installed for use with incandescent bulbs do not function acceptably below 40 W, whereas CFL applications commonly draw power in the range 7–20 W. Dimmable CFLs have been marketed before suitable dimmers are available.
The sports streaming game has a new player: DirecTV. The TV provider is launching MySports, a sports subscription streaming service with 40 channels including ESPN, Fox Sports, and the NFL Network.
A mammoth sinkhole opened along a major New Jersey interstate Thursday morning, closing several lanes and pushing motorists onto local roads to avoid the pit.
When the dimmer is at 50% power, the switches are switching their highest voltage (>325 V in Europe) and the sudden surge of power causes the coils on the inductor to move, creating a buzzing sound associated with some types of dimmer; this same effect can be heard in the filaments of the incandescent lamps as "singing". The suppression ...
Many Ukrainians were celebrating without heat or power after Russia launched a Christmas Day attack on the country’s energy infrastructure, an act that Ukrainian President Volodymyr Zelenskyy ...
The Ethiopian government used money from a World Bank-financed health and education initiative to brutally evict thousands of villagers , according to former government officials who helped carry out the forced removals. The World Bank, the planet's most influential development lender, has denied responsibility.