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A dimmer is a device connected to a light fixture and used to lower the brightness of the light. By changing the voltage waveform applied to the lamp, it is possible to lower the intensity of the light output. Although variable-voltage devices are used for various purposes, the term dimmer is generally reserved for those intended to control ...
Vintage push-button light switches. The push-button light switch has two buttons: one that closes the contacts and one that opens the contacts. Pushing the raised button opens or closes the contacts and pops out the previously depressed button so the process can be reversed. In the U.S., the buttons were commonly black; the "on" button ...
The text on retail LED lamp packaging may show the light output in lumens, the power consumption in watts, the color temperature in kelvins or a color description such as "warm white", "cool white" or "daylight", the operating temperature range, whether the lamp is dimmer compatible, whether the lamp is suitable for humid/damp/wet conditions ...
The term lighting control system refers to an intelligent networked system of devices related to lighting control. These devices may include relays, occupancy sensors, photocells, light control switches or touchscreens, and signals from other building systems (such as fire alarm or HVAC). Adjustment of the system occurs both at device locations ...
A pair of electronic 2.4 kW dimmers for tungsten incandescent lamps. A dimmer is a device used to vary the average voltage applied to an instrument's lamp. The brightness of a lamp depends on its electric current, which in turn depends on the applied lamp voltage. When the applied voltage is decreased, a lamp's electric current will also ...
Conspicuity devices are lights and reflectors that make a vehicle conspicuous and visible with respect to its presence, position, direction of travel, change in direction, or deceleration. Such lights may light steadily, blink, or flash, depending on their intended and regulated function.
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