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2. Balanced-arm lamp - Wikipedia

   en.wikipedia.org/wiki/Balanced-arm_lamp

   A stronger spring set controls the upper arm, which has three parallel bars (see photo, left). (There is a less stable construction with two parallel bars in the upper arm which is less expensive to manufacture.) Due to the parallel linkage of the lamp, the lamp cap keeps pointing in the same vertical direction when adjusting the height of the ...

3. Light fixture - Wikipedia

   en.wikipedia.org/wiki/Light_fixture

   A wide variety of special light fixtures are created for use in the automotive lighting industry, aerospace, marine and medicine sectors. [2] [3] Portable light fixtures are often called lamps, as in table lamp or desk lamp. In technical terminology, the lamp is the light source, which, in casual terminology, is called the light bulb.

4. Task lighting - Wikipedia

   en.wikipedia.org/wiki/Task_lighting

   A common form of home task lighting is a goose-neck lamp or swing arm light fixture. The adjustable neck allows light to be focused on the exact task needed, and the swing-arm wall sconces can be positioned next to a bed or chair, and adjusted to shine light on a printed page.

5. Track lighting - Wikipedia

   en.wikipedia.org/wiki/Track_lighting

   Track lighting is a method of lighting where light fixtures are attached anywhere on a continuous track device which contains electrical conductors. [1] [2] This is in contrast to directly routing electrical wiring to individual light positions. Tracks can either be mounted to ceilings or walls, lengthwise down beams, or across rafters or joists.

6. Pendant light - Wikipedia

   en.wikipedia.org/wiki/Pendant_light

   A pendant light, sometimes called a drop or suspender, is a lone light fixture that hangs from the ceiling usually suspended by a cord, chain, or metal rod. [1] Pendant lights are often used in multiples, hung in a straight line over kitchen countertops and dinette sets or sometimes in bathrooms.

7. Parabolic aluminized reflector - Wikipedia

   en.wikipedia.org/wiki/Parabolic_aluminized_reflector

   The size of rectangular PAR lamps is expressed as the letters REC followed by the reflector's mouth height, the letter "X", and the reflector's mouth width—with both dimensions in millimeters. For example, REC142X200 lamps are 142 high and 200 mm wide. [2] [3]