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 ?

The use of dimmers for ceiling fans is a common practice among handy homeowners because they do not realize professional expertise is needed to perform the task correctly.

Dimwitted way to wire a ceiling fan

The principal idea when designing the LED dimmer built on a commercial switching device IRM-45-48ST by MEAN WELL.

Low-Cost Extra-Low Voltage LED Dimmer for Tuneable White Lighting

The new dimmer replaces a standard wall switch and recognizes such commands as "lights low," "lights off," and "lights on." The speaker-independent operation allows it to work with anyone's voice, but consumers can choose from five voice commands or program any command or language they desire.

INTELAVOICE DIMMER DEBUTS

Such problems are usually due to incompatibility between the LED source and the phase-cut dimmer rather than due to any shortcoming in the LED product itself.

Phase-cut dimming and the compatibility conundrum

After you dim a CFL or LED bulb, it sometimes won't turn on until you move the dimmer slider up.

Smart switches: swap out a switch to cut energy bills and add convenience

KEY SPECS: The controller family has been tested to provide near-100 percent compatibility with a wide array of dimmers.

LED controller touts near - 100 percent TRIAC dimmer compatibility

The metal plate of the new dimmer will need to be earthed by connecting the yellow and green wire to the back.

Design doctor: Donna Hardie answers your DIY questions

Star will also introduce a new preset rotary dimmer, model 160.

Star's fan/light dimmers

However, LED drivers are different, whether separate from, or integral with, the lamps, and the electronic circuitry design of the dimmer determines the performance of the LED source.

LEDs and the unknown: don't expect peace of mind when it comes to LED replacements without universal agreement on interchangeability, drivers and color compatibility

preferably with a dimmer switch because the batteries will last for dozens of hours if you're judicious with the dimmer.

Shed some light on the subject

LEDtronics' DC/DC Dimmer supports 5-V to 40-V DC applications up to 2 A or 24 W.