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2. Multiway switching - Wikipedia

   en.wikipedia.org/wiki/Multiway_switching

   The switches may be arranged so that they are in the same orientation for off, and contrasting orientations for on. [1] A "4-way" (intermediate) switch is a purpose built double pole, double throw (DPDT) switch, internally wired in manufacture to reverse the connections between the input and output and having only four external terminals. This ...

3. Dimmer - Wikipedia

   en.wikipedia.org/wiki/Dimmer

   They enable computer control via networked switches, but do not require it. Their cost is about the same as the older "dimmability" circuitry that they replace in LED bulbs, fixtures or drivers. A residential-type dimmer switch with sliding knob to change brightness. The device is small enough to fit into a regular wall box provided for a switch.

4. LED lamp - Wikipedia

   en.wikipedia.org/wiki/LED_lamp

   A 230-volt LED filament lamp, with an E27 base. The filaments are visible as the eight yellow vertical lines. An assortment of LED lamps commercially available in 2010: floodlight fixtures (left), reading light (center), household lamps (center right and bottom), and low-power accent light (right) applications An 80W Chips on board (COB) LED module from an industrial light luminaire, thermally ...

5. Suspect charged with murder, arson for allegedly setting ...

   www.aol.com/news/female-passenger-killed-being...

   A 33-year-old man was charged Monday for allegedly setting on fire and killing a woman on a New York subway train in what authorities called a “brutal murder” and an example of “depraved ...

6. 5 cancer types where screenings save the most lives - AOL

   www.aol.com/5-cancer-types-where-screenings...

   Over a 45-years span — between 1975 and 2020 — improvements in cancer screenings and prevention strategies have reduced deaths from five common cancers more than any advances in treatments ...

7. Hidden Uses for Common Household Products Most People Don't ...

   www.aol.com/finance/hidden-uses-common-household...

   1. Tennis Ball. Tennis balls are so useful that you may want to buy some to keep around the house even if you don’t play. For example, half a tennis ball can help screw open tight caps.