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2. Light switch - Wikipedia

   en.wikipedia.org/wiki/Light_switch

   Two light switches in one box. The switch on the right is a dimmer switch. The switch box is covered by a decorative plate. The first light switch employing "quick-break technology" was invented by John Henry Holmes in 1884 in the Shieldfield district of Newcastle upon Tyne. [1]

3. Dimmer - Wikipedia

   en.wikipedia.org/wiki/Dimmer

   Dimmer. A dimmer is a device connected to a light fixture and used to lower the brightness of the light. By changing the voltage waveform applied to the lamp, it is possible to lower the intensity of the light output. Although variable-voltage devices are used for various purposes, the term dimmer is generally reserved for those intended to ...

4. Multiway switching - Wikipedia

   en.wikipedia.org/wiki/Multiway_switching

   Electrical installations. In building wiring, multiway switching is the interconnection of two or more electrical switches to control an electrical load from more than one location. A common application is in lighting, where it allows the control of lamps from multiple locations, for example in a hallway, stairwell, or large room.

5. Sodium-vapor lamp - Wikipedia

   en.wikipedia.org/wiki/Sodium-vapor_lamp

   A sodium-vapor lamp is a gas-discharge lamp that uses sodium in an excited state to produce light at a characteristic wavelength near 589 nm . Two varieties of such lamps exist: low pressure and high pressure. Low-pressure sodium lamps are highly efficient electrical light sources, but their yellow light restricts applications to outdoor ...

6. Stocks hammered after this week's labor data shows investors ...

   www.aol.com/finance/stocks-hammered-weeks-labor...

   Utilities rose roughly 2%, while Consumer Staples gained 1.8% compared to the S&P 500's more than 3% decline. Taken together, this trading action marks a clear shift in how markets are weighing ...

7. Irvin allows 1 hit over 8 innings, Winker homers as the ... - AOL

   www.aol.com/news/irvin-allows-1-hit-over...

   Jake Irvin allowed just one hit and issued one walk in eight innings, Jesse Winker hit a pinch-hit home run and the Washington Nationals beat the New York Mets 1-0 on Thursday in the traditional ...