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

 
Ceremony Lights up National Mall
by Staff |

Secretary of the Interior Ken Salazar, Secretary of Energy Steven Chu, the National Park Service and the Trust for the National Mall hosted a ceremony on Jan. 30, 2012, to celebrate the installation of energy-efficient light-emitting diodes (LEDs) on the National Mall in Washington, D.C.


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LED Street Smarts

Light-emitting diodes (LEDs) have been appearing in traffic signals and vehicle headlights for years and are poised to affect another source of light we use to navigate our cities and towns.


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Electrodeless Lighting

While experimenting with high-frequency current, inventor Nikola Tesla developed an electrodeless lamp, but the concept remained largely unexplored for the next century (except as a novelty lamp in the 1980s).


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Going Into Effect

Welcome to 2012, the year lighting efficiency takes center stage. From federal regulations to emerging standards affecting bulbs, lighting systems and controls, the next 12 months and beyond will present electrical contractors and their customers with change and choice.


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Lighting the Way Forward

By now, the electrical industry is well aware that national energy standards have eliminated the manufacture and import of fluorescent magnetic ballasts for 4- and 8-foot standard and energy-saving T12 lamps, with few exceptions.


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Read the Label

Common household lamps (light bulbs) now carry uniform labeling to facilitate educated decisions focusing on light output and energy costs, not watts, helping consumers transition to more efficient lamp types. People typically purchase traditional incandescent lamps based on wattage.


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Spotlight on Dimming

Energy codes, green building projects, user interest in flexibility and other market forces are driving demand for lighting solutions, including high-intensity discharge (HID) lighting systems, such as high-pressure sodium and metal halide.


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