Tag: Craig’s Electrical Contractor Articles

Four New Technologies Offer Potential for Lighting

My contribution to the December 2013 issue of ELECTRICAL CONTRACTOR describes four interesting lighting technologies that offer a new potential for lighting. Field-induced polymer electroluminescent, quantum-dot LED, visible light spectrum…

EC-future-articleMy contribution to the December 2013 issue of ELECTRICAL CONTRACTOR describes four interesting lighting technologies that offer a new potential for lighting. Field-induced polymer electroluminescent, quantum-dot LED, visible light spectrum communication, and bioluminescent illumination.

Check it out here.

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ELECTRICAL CONTRACTOR Publishes Article on LED Maintenance

My lighting column in the April 2013 issue of ELECTRICAL CONTRACTOR addresses LED product maintenance. Over the past months, I’ve had the opportunity to work with the IES Maintenance Committee…

light_bulb_replaceMy lighting column in the April 2013 issue of ELECTRICAL CONTRACTOR addresses LED product maintenance. Over the past months, I’ve had the opportunity to work with the IES Maintenance Committee on revising RP36, and conducted extensive interviews with manufacturers and others about maintaining LED products. As you might suspect, they’re not quite maintenance free.

Click here to learn more.

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ELECTRICAL CONTRACTOR Publishes Article on Light Right Survey Tool

ELECTRICAL CONTRACTOR recently published a lighting column I authored on the topic of the Light Right Survey Tool, available here. Developed by the Pacific Northwest National Laboratory, it enables building…

ecmagELECTRICAL CONTRACTOR recently published a lighting column I authored on the topic of the Light Right Survey Tool, available here.

Developed by the Pacific Northwest National Laboratory, it enables building owners/managers and lighting practitioners to inventory and evaluate lighting systems in office spaces.

Available free, the Light Right Survey Tool can be used:

• As a diagnostic tool to determine if any changes could be made to a lighting system to increase user satisfaction


• As a way to measure the effectiveness of various lighting improvements


• To identify equipment and design choices that produce higher levels of lighting satisfaction


• To increase communication between lighting decision-makers and those who actually use the lighting


• As a way to justify appropriate lighting investments to the owner of the lighting system


Read it here.

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ELECTRICAL CONTRACTOR Publishes Article About Light and Color

Lighting choices can affect how we perceive spaces, even the colors of objects and surfaces. As a result, lamp color characteristics are a critical factor in a wide range of…

Lighting choices can affect how we perceive spaces, even the colors of objects and surfaces. As a result, lamp color characteristics are a critical factor in a wide range of spaces, from high-end retail, where merchandise must be presented as vibrant and in its true colors, to offices, where good lighting renders faces naturally and facilitates interaction. Although almost all architectural lighting uses white light, white is available in many hues and color rendering abilities, providing a palette of choices for lighting spaces.

Check out this article I wrote for ELECTRICAL CONTRACTOR, which describes the science of color vision, popular metrics used to evaluate and predict the color performance of lighting products, and guidelines that can support successful application.

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Lighting Rebates Enjoying Upswing

Rebates and incentives offered by electric utilities and regional energy-efficiency organizations are currently enjoying a major upswing, providing a significant resource that can reduce the cost of investing in energy-efficient…

Rebates and incentives offered by electric utilities and regional energy-efficiency organizations are currently enjoying a major upswing, providing a significant resource that can reduce the cost of investing in energy-efficient lighting.

According to the Consortium for Energy Efficiency (CEE), energy-efficiency rebate and incentive programs reached $6.8 billion in 2011, up 26% from 2010 ($5.4 billion) and 55% from 2009 ($4.4 billion). Utilities and other organizations now offer programs covering approximately 80% of the United States.

That’s the topic of an article I wrote for ELECTRICAL CONTRACTOR, which was published in its August 2012 issue and is available to read free online here.

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ELECTRICAL CONTRACTOR Publishes Article on Bilevel Stairwell Lighting

Stairwell lighting is typically operated continuously at full output in nonresidential buildings even though these spaces are only intermittently used. In recent years, lighting manufacturers have begun offering a control…

Image courtesy of LaMar Lighting


Stairwell lighting is typically operated continuously at full output in nonresidential buildings even though these spaces are only intermittently used. In recent years, lighting manufacturers have begun offering a control solution that can reduce energy costs while providing satisfactory levels of illumination for emergency egress. These lighting fixtures automatically adjust light levels based on occupancy.

Click here
to read this article I wrote for ELECTRICAL CONTRACTOR about bilevel stairwell lighting.

Update: The article provides general information about stairwell illumination requirements as interpreted by various manufacturers, for educational purposes only. Be sure to check with your local authority about specific requirements applicable in your jurisdiction.

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Electrical Contractor Magazine Publishes Article About Model Lighting Ordinance

The Model Lighting Ordinance (MLO), produced jointly by the Illuminating Engineering Society (IES) and the International Dark-Sky Association (IDA), provides a template for municipalities seeking to develop standards for responsible…

The Model Lighting Ordinance (MLO), produced jointly by the Illuminating Engineering Society (IES) and the International Dark-Sky Association (IDA), provides a template for municipalities seeking to develop standards for responsible outdoor lighting. Specifically, the MLO addresses skyglow (light emitted up into the sky that obscures nighttime viewing of stars), light trespass (light emitted onto neighboring property), and glare (excessive brightness that impairs or disables vision).

Click here to read an article I contributed to Electrical Contractor Magazine that provides an introduction to the MLO.

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ELECTRICAL CONTRACTOR Publishes Article About Electrodeless Lighting

Electrodeless lamps do not require wiring connections between the lamp and its ballast or driver. As most wear and tear on lamps occurs at the electrode, its absence in this…

Image courtesy of Topanga Technologies

Electrodeless lamps do not require wiring connections between the lamp and its ballast or driver. As most wear and tear on lamps occurs at the electrode, its absence in this technology can significantly extend lamp life.

This article I wrote for ELECTRICAL CONTRACTOR breaks down the different types, from induction lamps to plasma lamps.

Not the article contains an error, which is that while Dura-One is listed in the Sylvania online catalog as a category, it was officially de-listed by the company some time ago. Additionally, as an update, Sylvania has added 40W, 70W and 200W models to its Icetron system, and in July is expected to release a 100W dimmable model.

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The End of The T12 Era Approaches

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…

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.

On July 14, 2012, Department of Energy (DOE) rules regulating general-service fluorescent lamps will go into effect, eliminating many popular models and dramatically accelerating the market shift to T8 and T5 lamp/ballast systems.

Electrical Contractor has published a feature story I wrote about these regulations and the options T12 system owners are facing this year as the T12 era comes to a final close.

Read it here.

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How to Evaluate Light Sources

Electrical Contractor recently published an article I wrote about a simple methodology for evaluating light sources based on a basic series of questions: • What is the distribution of the…

Electrical Contractor recently published an article I wrote about a simple methodology for evaluating light sources based on a basic series of questions:

• What is the distribution of the light? Distribution is measured in candelas (cd).
• How long does the lamp last? Service life is measured in hours.
• How much light does it produce? Light output is measured in lumens (Lm).
• How much electric power does the system require? Power is measured in watts (W).
• How efficient is it compared to others? Efficacy is measured in lumens per watt (LPW).
• What is the color appearance of the source? Color tone is measured in kelvins (K).
• How well does the source render colors? Color rendering is expressed on the color rendering index (CRI).

Check it out here.

Image courtesy of Peter Ngai.

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