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. 

Organic LED (OLED) is a solid-state lighting technology with strong potential for architectural lighting. The LED is a compact, directional point source. Shielding prevents glare, while heat sinking removes internal heat. In contrast, OLED is a flat (less than 1/8-inch thick), diffuse area source.

Human perception of colors in their environment is dependent on light. As electric light sources have varying spectral emissions, the electrical industry relies on metrics to report, evaluate and predict how colors will appear under different light sources.

According to the U.S. Department of Energy (DOE), more than 360 million troffers (named for a cross between trough and coffer) provide general lighting in commercial building interiors.

An interesting phrase comes up frequently in the rapidly evolving streetlight market: “real estate.” Most of us see a streetlight as a utilitarian lighting fixture, but manufacturers, utilities and city managers see a business opportunity enabled by a vast network of powered, connected devices.

More on Lighting

 
Walk Toward the Light

The green design—good for the environment in that it makes buildings more sustainable—can be bad for lighting, as designers are incentivized to chase points that may require sacrifices to design. For lighting, it can be especially risky.


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Location, Location, Location

In part 1 of this two-part series on photosensors, I described the major characteristics of photosensors and ended with a problem: suppose we have a classroom in which we want to begin dimming the row of fluorescent lighting fixtures adjacent to a series of windows when daylight levels reach 150 pe


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Photosensors

Daylight harvesting’s value proposition is fairly simple: as daylight levels increase in a space, electric lighting levels can be automatically reduced to maintain a target task lighting level and save energy.


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A New Sheriff in Town

Light-emitting Diode (LED) replacement lamps, including omnidirectional, directional and decorative lamps, are now proliferating the market.


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Rest in Peace

Once a venerable workhorse in commercial lighting, the fluorescent magnetic T12 ballast is now considered a dinosaur. All but extinct in new construction, there are still millions of these ballasts installed in commercial buildings throughout the United States.


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Beyond DALI

According to a report on www.researchandmarkets.com, the emerging global lighting technologies market is expected to be worth $109.2 billion by 2014 and is growing at an estimated compound annual growth rate (CAGR) of 8.1 percent from 2009 to 2014.


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A Green Stand

Standard 189.1, the Standard for the Design of High-Performance, Green Buildings Except Low-Rise Residential Buildings, published in late January by the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE), provides the first code-intended commercial green building stan


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