Lighting

 

 

Lighting and controls is a huge, constantly changing, dynamic market. The ELECTRICAL CONTRACTOR lighting editorial listed below keeps current on technological innovations from LEDs, controls, and design to innovations in efficiency by traditional lighting formats. 

High-intensity discharge (HID) lamps, notably metal halide and high-pressure sodium, are widely installed in industrial, retail, and other applications. In recent years, the LED revolution has produced retrofit options promising up to 50 percent energy savings and long service life.

Traditionally, commercial electrical systems are based on alternating current (AC). The utility grid delivers AC power, which the building distributes. Low-voltage devices include a rectifier that converts AC to direct current (DC), with associated electrical losses.


When attending large conventions such as Lightfair International (LFI), attendees expect to see industry experts with decades of experience. It is less expected to meet a college junior, as 2017 LFI attendees did in Philadelphia in May.

In commercial building applications, dimming either is used to support visual needs (usually in response to manual input) or to save energy (usually in response to automatic input).

More on Lighting

 
GOP Fails to Flip Switch on Lighting 'Ban' Repeal

The House of Representatives voted on a repeal of the so-called “bulb ban” on July 12, 2011, but failed to reach its needed two-thirds majority, concluding with 233 members in favor of the repeal and 193 against it.


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High-Intensity Workouts

As with other types of lighting, energy codes and legislation are influencing high-intensity discharge (HID) lighting—high-pressure sodium (HPS), metal halide (MH), and mercury vapor—in this era of regulated efficiency.


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LED History 101

"LED" is often used in casual converstion, and most people think they know what these initials stand for. Actally, most people don’t.


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2011: The Year of the LED?

Any given year has its predictions. If you’re reading this article, the world as we knew/know it didn’t end on May 21—one of the most publicized predictions for 2011. In Chicago, Cubs fans may yet again be asserting that next year will be the year their team goes all the way.


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LEDs: Their Future is (Really) Bright!

Debate continues about whether LEDs have the output in lumens, the color consistency and the price point to replace traditional incandescent, halogen and fluorescent lamps in high brightness and general illumination applications. Is it finally time to end the discussion?


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Control Tweaks

The many advantages of light-emitting diodes (LEDs) for general illumination have outweighed their limitations, except when it comes to dimming.


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Quality Assurance

The LED revolution continues to promise many lighting benefits, such as compact size, energy efficiency, long service life with long mean time between failures, no mercury disposal, a resistance to shock and vibration, and no radiated heat or UV output.


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