dimmer


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dimmer

1. a device, such as a rheostat, for varying the current through an electric light and thus changing the illumination
2. US
a. a dipped headlight on a road vehicle
b. a parking light on a car

Dimmer

A solid-state device used to vary the voltage to a light fixture and thereby lower or raise the intensity of the light. Used mainly for incandescent lamps and fluorescent lamps with special ballasts. Also called a rheostat, it can be installed on a wall switch or directly into a lamp and can easily be added to existing installations.

dimmer

[′dim·ər]
(electricity)
An electrical or electronic control for varying the intensity of a lamp or other light source.

dimmer

A device which varies the light intensity of a light source without appreciably affecting the spatial distribution of the light; usually an electric control device that varies the current flow and hence the light output of the lamp. dimmer room A room in which are located the dimmers for controlling the lights for an auditorium or theater.
References in periodicals archive ?
However, phase control dimmers have a fundamental flaw--the power factor at the input to the dimmer will be substantially lower than the power factor of the lamp being dimmed.
The Theater Dimming System will be installed in the Dimmer room adjacent to the theater on the second
The on/off switch supports appliances up to 1,500 watts, the ceiling fixture dimmer replaces an existing wall light switch (requires rewiring), and the system requires a wireless router with port forwarding enabled for access via the Internet.
For the past 50 years, the solid-state dimmer has made homes more beautiful and offices more efficient--all while saving energy and increasing lamp life.
Ballast Dimmer further enhances the power of INSTEON in a commercial environment: offices, lobbies, conference rooms - anywhere there are overhead fluorescents can now benefit from discrete fixture-by-fixture control and dimming.
To that end, Lutron is pleased to announce the launch of a national, energy-saving awareness campaign with an aggressive goal: to get every home in the United States to replace two light switches with energy-saving dimmers.
July 15, 2013 /PRNewswire/ -- Legrand, a leading provider of electrical wiring devices and home systems, has announced the availability of its new Pass & Seymour Harmony (TM) Tru-Universal Dimmer (Harmony Tru-Universal Dimmer).
Moreover, the amount of dust that lies between the supernova and Earth is uncertain, which could confound measurements by making the explosion appear dimmer - and thus more distant- than it really is.
Those of us who have made the switch to more energy-efficient bulbs like compact fluorescent lamps (CFLs) and screw-in light emitting diode (LED) lamps, but love the ambiance and energy efficiency of a dimmer, can now have the best of both worlds.
June 26, 2013 /PRNewswire/ -- INSTEON, manufacturers of the best-selling home automation and control technology, today announced an updated scene control keypad and integrated dimmer.
Our latest GreenChip LED controller IC sets a new benchmark in dimmer compatibility.