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A 3-way lamp, also known as a tri-light, is a lamp that uses a 3-way light bulb to produce three levels of light in a low-medium-high configuration. A 3-way lamp requires a 3-way bulb and socket, and a 3-way switch. In 3-way incandescent light bulbs, each of the filaments operates at full voltage. Lamp bulbs with dual carbon filaments were ...
An optional additional lamp can be connected at Terminal A as a pilot lamp, or to illuminate a long corridor. An optional receptacle can be connected at Terminal B, since that terminal is always live. Comparison of the traveler (1) and California 3-way (2) systems with multiple switched and unswitched lights
Aladdin Industries filed key "Aladdin Lamps" patents in 1954 and 1956, [1] [2] and commercial models were available by 1955. [3] However, due to low electrical efficiency and high price of the vacuum tube-based product, the concept was not popularized until later versions of the touch mechanism used integrated circuits and transistors to improve efficiency and reduce cost in the mid 1980s.
Wildfires in the Los Angeles area have burned tens of thousands of acres, damaged or destroyed thousands of structures and forced people to evacuate across the region. The Palisades, Eaton and ...
Kentucky has approached Suboxone in such a shuffling and half-hearted way that just 62 or so opiate addicts treated in 2013 in all of the state’s taxpayer-funded facilities were able to obtain the medication that doctors say is the surest way to save their lives. Last year that number fell to 38, as overdose deaths continued to soar.
Dashcam footage collected by USA TODAY shows a handful of motorists narrowly avoid some pretty dangerous predicaments on the road.
These lamps use a bi-pin connector for power: 12-volt MR11 bulbs usually use a GU4 base, and 12-volt MR16 bulbs usually use a GU5.3 base. The common 12-volt MR16 lamps, therefore, require a ferromagnetic or electronic transformer—sometimes misnamed as a ballast—to convert the 120- or 230-volt mains voltage to the extra-low voltage required ...
The sounds of sobbing, prayers and anguish echoed through the departures hall of an airport in southwestern South Korea on Monday as families of the victims aboard a passenger jet that crash ...