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An automatic lamp changer (or lampchanger) is a device used to ensure that a navigational light such as a marine lighthouse or aero beacon stays lit even if a bulb burns out. Numerous types exist. The common design elements are an array of two or more lamps (or bulbs), installed on a mounting which can rotate to various positions.
Texas Tech's athletic teams are known as the Red Raiders with the exception of the women's basketball team, which is known as the Lady Raiders. Texas Tech competes in NCAA Division I FBS (formerly Division I-A) and is a member of the Big 12 Conference. From 1932 until 1956, the university belonged to the Border Intercollegiate Athletic Association.
As of 2007, Texas Tech University at Highland Lakes occupied a 10,000-square-foot (930 m 2) building. The city is funding an expansion that will double the size of the facility. The city is funding an expansion that will double the size of the facility.
The Texas Tech University System is a public university system in Texas with five member universities. Headquartered in Lubbock, Texas, the Texas Tech University System is a $3 billion enterprise focused on advancing higher education, health care, research, and outreach with approximately 21,000 employees, more than 63,000 students, nearly 400,000 alumni and an endowment valued at $3.06 billion.
The center bulb may be very high power (often a three-way, 100-200-300 watt bulb), where the others are usually 60 watts or less. Some models have a night light in the base operated by a foot switch. One model turns the current light settings on or off by moving the lamp pole up or down.
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 important property of light fixtures is the luminous efficacy or wall-plug efficiency, meaning the amount of usable light emanating from the fixture per used energy, usually measured in lumen per watt. A fixture using replaceable light sources can also have its efficiency quoted as the percentage of light passed from the "bulb" to the ...
A lamplighter or gaslighter is a person employed to light and maintain street lights. These included candles, oil lamps, and gas lighting. Public street lighting was developed in the 16th century. [1] During this time, lamplighters toured public streets at dusk, lighting outdoor fixtures by means of a wick on a long pole. [2]