Month: July 2017

Product Monday: Sling by Hubbell Outdoor

Sling by Hubbell Outdoor Lighting is a slender, versatile and energy-efficient small wall and flood luminaire available in four lumen outputs and two sizes. Suitable applications include building entrances, perimeter…

Sling by Hubbell Outdoor Lighting is a slender, versatile and energy-efficient small wall and flood luminaire available in four lumen outputs and two sizes. Suitable applications include building entrances, perimeter lighting for schools, apartment buildings and commercial applications.

The luminaire ranges from 21W to 80W with output up to 8,000 lumens and efficacy up to 110+ lumens/W, with a choice of 3000K, 4000K or 5000K CCT. The decorative die-cast aluminum housing is available in five standard colors. Four ½” threaded conduit hubs for surface conduit. A comfort lens is available as an option or accessory providing glare control and enhanced uniformity. IP65 rated and certified to UL 1598 for use in wet locations up to 40C ambient. Voltages 120-277V, 347V and 480V.

Click here to learn more.

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LED Upgrade Options for HID Luminaires

Below is my contribution to the June issue of tED Magazine on the topic of LED upgrade options for HID luminaires. Reprinted with permission. As a popular light source for…

Below is my contribution to the June issue of tED Magazine on the topic of LED upgrade options for HID luminaires. Reprinted with permission.

As a popular light source for industrial, retail, public space, parking garage and outdoor area and roadway applications, high-intensity discharge (HID) lamps represent an enormous installed lighting base.

LED technology has progressed to offer energy-saving, long-life alternatives for virtually every application, including those traditionally served by HID luminaires. The impact on HID lamp demand is suggested through the lens of the National Electrical Manufacturers Association’s (NEMA) HID Lamp Index, which has shown a steady decline.

In recent years, manufacturers have begun developing retrofit options targeting existing HID luminaires. LED replacement lamps enable a potentially lower-cost option for switching to LED, with up to 50 percent energy cost savings. Other advantages include instant-ON operation, improved lumen maintenance, universal operating position, good color quality and long life. LED retrofit kits package the lamp with other components for a repeatable solution that effectively becomes a new luminaire.

The strong potential of these products has led to recognition within the DesignLights Consortium’s (DLC) Qualified Products List used by many utility rebate programs to qualify products. The number of utilities offering rebates promoting these lamps jumped from 10 in 2016 to nearly 120 in 2017, according to BriteSwitch, with an average rebate of $110 per lamp.

As a result, LED replacement lamps and retrofit kits offer viable upgrade options, though careful product selection and application is necessary to yield desired results.

Options

Lamp upgrade options for existing HID luminaires include ballast- and line-driven LED replacement lamps.

Overall, wattages range from 30W up to 400W for replacement of 50W up to 1000W HID lamps, with average lamp efficacy around 110 lumens/W. In terms of color quality, 2000K to 5000K correlated color temperatures (CCT) are available offering very warm to very cool shades of white light, and with color rendering index ratings typically in the low 80s. The majority of products offer service life of 50,000 hours at L70 lumen maintenance. And most carry a warranty between five and 10 years.

A very common upgrade is 150W and 200W LED lamps rated at 17,000 to 21,000 lumens replacing 400W metal halide lamps.

Ballast-driven lamps. These plug-and-play lamps screw into the existing socket and operate on the existing ballast and wiring. No modifications are required to the luminaire, making this option relatively quick and low-cost. Light output varies but ranges from about 2,000 to 20,000 lumens.

However, these lamps utilize the existing ballast, which presents an eventual point of failure an additional 40-60W of load. In some cases, the LED lamp must be properly matched to the type of ballast (metal halide, high-pressure sodium, etc.).

Line-driven lamps. These lamps bypass the existing ballast and operate on line voltage (120-277V), eliminating the ballast and its associated energy and maintenance costs. Some lamps qualify for listing by DLC. Light output varies but ranges from about 1,500 to 15,000 lumens.

However, this option is typically more expensive in terms of labor than ballast-driven lamps, as a qualified electrician must perform the necessary electrical modifications to bring line voltage to the sockets.

Retrofit kits.
A retrofit kit modifies the existing luminaire in a way that will no longer accept HID lamps. This satisfies the utility because it eliminates the possibility of “snapback” to less-efficient technology. It also may provide a marginal efficacy improvement over lamp replacement. Many are listed by DLC, qualifying them for certain utility rebate programs.

Often, installing a retrofit kit requires replacing the ballast with an LED driver. Secondary optics may be packaged with the kit.

“Both LED replacement lamps and LED retrofit kits are a quickly growing area right now,” said Joseph D. Engle, Product Manager, New Product Innovation, Hubbell Lighting. “There is a good offering of wattages, CRI and CCT. Some are DLC-listed. Most carry an industry-acceptable warranty between five and 10 years.”

Application

When applying LED replacement lamps and retrofit kits to HID luminaires, many factors must be considered, including light output, lighting quality, socket condition, temperature and other environmental conditions, UL listing, and controls.

Light output. The majority of LED HID replacement lamps feature a “corncob” design, approximating the light emission of an HID lamp. Directional PAR lamps are also available. These lamps and LED retrofit kits often feature a flat chip-on-board design.

Be sure to make lumen comparisons based on application light level needs, lumen depreciation rates and luminaire optical efficiency. If the lamp is directional, be sure to consider center beam candlepower (CBCP), which is the light intensity directly in front of the lamp. And always remember a rule of thumb for effective lighting upgrades is to save energy while maintaining or improving lighting quality.

“Make sure to maintain the overall light quality and output that the customer is used to,” said Alfred LaSpina, LED Product Group Marketing Manager, LEDVANCE.

Lighting quality. LED replacement lamps and retrofit kits should provide similar light distribution as the incumbent lamp while potentially improving color quality.

“If properly designed, the replacement does not compromise light distribution both in terms of center beam punch as well as off-axis consistency,” said Tom Quinn, Vice President of Sales, Lunera Lighting. “It is possible to review a polar plot that compares the light distribution of a fixture using a standard HID lamp versus an LED replacement lamp.”

Socket condition. Evaluate the condition of the luminaire and socket prior to committing to an LED option. “An ideal condition for replacing HID with LED would be a socket that is not aging,” LaSpina said. “Also whether the base is medium or mogul as HID LED replacement lamps tend to be heavier than their traditional counterparts, and the socket needs to take the weight of the new product. If the sockets are older, a replacement would be needed prior to installing the LED solution.”

Temperature. The lamp should be properly designed for the ambient heat conditions. “A properly designed LED lamp should be able to deliver adequate lumens to meet the needs of the application while maintain an LED package temperature that assures the LED chip will operate reliably over the stated 50,000-hour L70 life,” Quinn said. “A good LED replacement lamp manufacturer should be able to provide in situ test data showing the temperature of the LED chips remains below the chip manufacturer’s thermal specification when the lamp reaches a steady state operating temperature when deployed in a typical application.”

That being said, Engle warned that LED lamps may not be able to withstand the high ambient temperatures present in some HID lighting applications. “Be careful about the environment that these lamps and kits are used in,” he said. “The HID fixture was carefully designed to do a specific lighting job and survive a specific environmental condition. Always make sure that the LED lamp or retrofit kit does not compromise the lighting job and will work in the environment.”

Another aspect of temperature is LED lamps produce a fraction of the heat of HID lamps, which can be beneficial in conditioned spaces. “If the installation has people utilizing the space, cooling methods may be necessary to maintain a comfortable environment, which adds to a building’s energy costs,” LaSpina said. “This isn’t an issue with LEDs.”

UL. The LED replacement lamp should be Listed and approved for use in the given luminaire. “Depending on the replacement solution, an electrician may be required to bypass the existing ballast,” LaSpina said. “This would void the UL Listing of the luminaire, so it is important to choose an LED replacement that has a dual UL Listing—UL 1993 and 1598c—which would carry the listing that is required for retrofit.”

Control. The majority of LED lamps are not controllable. LED retrofit kits are typically packaged with standard drivers that feature 0-10V leads that can be connected to control systems. This makes a wide range of lighting control strategies available to luminaires that had limited options when fitted with HID lamps. These strategies can generate additional energy costs savings, extend life, increase flexibility and potentially produce data.

Final word

“Building owners have three choices for upgrading lighting infrastructure,” said Quinn. “One, do nothing. Two, do something. Three, do everything. Doing nothing is shortsighted as there are valuable operational savings that can come from an LED lighting upgrade. Doing everything is still expensive. Doing something is the obvious play. Converting an existing building to LED via a lamp upgrade or retrofit conversion is simple, safe and affordable. Expect payback to be inside of one year when converting from HID to LED.”

“The best advantages of LED replacement lamps and kits are the easy installation and the low cost,” Engle said. “The disadvantages are questionable reliability, questionable thermal performance and mismatch to the application. The best application for both of these products is a damp or dry location that will not see extreme temperatures or high dirt conditions. In these applications, the reliability and thermal performance issues are minimized.”

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CSIL: U.S. Luminaire Market $12.9 Billion in 2016

CSIL recently published the 2017 edition of its report, The Lighting Fixtures Market in the United States. Running about 200 pages, the report covers market size and trend, international trade,…

CSIL recently published the 2017 edition of its report, The Lighting Fixtures Market in the United States.

Running about 200 pages, the report covers market size and trend, international trade, distribution channels and reference prices, market segmentation and product characteristics, financial key indicators, sales data, short profiles and market shares of the major local and international players.

Excerpt:

“In 2016, the US production of lighting fixtures amounted to USD 12.9 billion. In 2015, it overcame the pre-crisis level and in 2016 continued its positive trend (+11.6% on the previous year). More specifically, the production of residential lighting remained stable, ending the negative trend that characterized the previous years; while the production of professional luminaires kept on growing at high rates. On the other hand, international trade faced a setback as both imports and exports contracted by respectively 9% and 8%. The value of domestic market in 2016 is estimated to be USD 20.3 billion, with a 3% increase compared to 2015. Even if positive, the growth registered in 2016 is much lower than the rates characterizing the previous years. Such a slowdown can be explained partly by the contraction of international trade and partly because of a softness in market demand that began in the second half of 2016. Such a weakness in internal demand is expected to continue in 2017, for which CSIL estimates an even slower growth (+2%). The market is expected to pick up in 2018 (+3.5%) and further improve in 2019 and 2020 (+4% each). The LED-based segment reached 51.4% of the total market in 2016; it has been growing especially for the outdoor lighting applications, where today it accounts for around 70% (10 percentage points more than the year before). Overall, in 2016, the growth rate of LED fixtures consumption was 26%.”

Click here to learn more.

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Willmorth Challenges Humancentric Lighting

Lumenique’s Kevin Willmorth recently published a blog post questioning the use of the term “humancentric lighting” and raising concerns about how it is being marketed and applied. Without mincing words,…

Lumenique’s Kevin Willmorth recently published a blog post questioning the use of the term “humancentric lighting” and raising concerns about how it is being marketed and applied.

Without mincing words, his post begins:

I do not use, like, or support, the term “Human-Centric Lighting” or HCL, and the marketing of it. Nor am I convinced the bullish marketing of the term makes it any more attractive or legitimate. The term has been tagged onto so many crack-pot claims, unsupported promises, and misapplication of hand-selected, overly simplified misleading single-line extractions from legitimate studies, and anecdotal claims by unqualified “experts” – that it has become nothing more than an extension of the now discredited “Full Spectrum” marketing that has plagued lighting for decades.

The confusion of white light tuning for lighting color effect has now been bolted to human-centric lighting, as more and more marketers rush to stake a claim on this populist movement. I am weary of the numerous “studies” supporting claims, that are nothing more than simple biased surveys of lighting customers, with no effort to remove the Hawthorne Effect, or other bias, that I no longer believe any of them present any meaningful data worth wasting time considering.

He goes on to talk about abuses, what research is telling us now, and that our advancing understanding of the relationship between lighting and health may necessitate new expertise and possibly even a new profession.

Click here to check it out.

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What’s New in Retail Lighting

RETAIL ENVIRONMENTS recently published an interesting article about how retail lighting is changing in the LED era. It appears we need to go on hammering the basics–layering with light, integrating…

RETAIL ENVIRONMENTS recently published an interesting article about how retail lighting is changing in the LED era. It appears we need to go on hammering the basics–layering with light, integrating light and architecture, and so on–while talking about the extraordinary new possibilities in lighting with LED technology.

Click here to read it.

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Product Monday: LED Retrofit Kit by Eaton

Eaton’s Metalux Cruze LED Retrofit Kit is an energy-efficient solution featuring simple and quick installation for customers wanting to easily upgrade from fluorescent luminaires to LED technology without the need…

Eaton’s Metalux Cruze LED Retrofit Kit is an energy-efficient solution featuring simple and quick installation for customers wanting to easily upgrade from fluorescent luminaires to LED technology without the need to install a new fixture. Eaton’s LED retrofit kit utilizes the existing fluorescent luminaire’s housing to save on the cost of purchasing a complete fixture, while also reducing material disposal cost in a retrofit project. Saving on installation labor costs, the high-performing and aesthetically-styled LED system features the latest solid state lighting and driver technology for optimal performance, while providing energy savings of more than 50 percent compared to select fluorescent fixtures.

The highly efficient LED system with an advanced optional design provides optimal light uniformity while delivering high performance efficacy of up to 138 lumens/W. Available in 2×2 and 2X4 sizes, four stocked lumen levels and two color temperatures at 85+ CRI, the product is designed to last 60,000 hours at 75% lumen maintenance.

The Metalux Cruze Retrofit Kit is available with a variety of control options including an optional integrated sensor system, optimized to meet energy codes for occupancy sensing and daylight harvesting. Factory wired for out-of-the-box operation using thoughtful default setting, the system reduces time and complexity with no additional wiring and adds lighting control without commissioning. If the application demands more, an optional handheld remote is available for field adjustments to make changes to one or more fixtures. The system achieves the lowest installed cost as compared to traditional control products.

In addition, the retrofit kit is available with Eaton’s connected lighting systems, including the WaveLinx Wireless Connected Lighting System and the LumaWatt Pro Connected Lighting System powered by Enlighted. The WaveLinx wireless system is a simple to install “no new wires” system that eliminates the cost and complexity of meeting code and programming advanced control systems while providing a flexible and reconfigurable wireless topology for on the fly space adjustments through a mobile app. The LumaWatt Pro system powered by Enlighted allows enterprise customers to take advantage of the system’s advanced LED lighting technologies and wireless sensing capabilities to acquire actionable, granular data on lighting energy performance, space utilization, real time location services and building system integration.

The product is DesignLight Consortium qualified, making it eligible for energy rebates.

Click here to learn more.

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Philips Lighting’s Jon Zelinsky on Upgrading Troffers to LED

I recently had the pleasure of interviewing Jon Zelinsky, PE, Contractor Marketing Director, Philips Lighting. The topic: upgrading troffers to LED. I’m happy to share his responses with you here….

I recently had the pleasure of interviewing Jon Zelinsky, PE, Contractor Marketing Director, Philips Lighting. The topic: upgrading troffers to LED. I’m happy to share his responses with you here. The interview informed an article I wrote for the May 2017 issue of tED Magazine.

DiLouie: What basic choices do building owners have to upgrade existing troffer-based fluorescent lighting systems to LED?

Zelinsky: Building owners can choose from a few different product categories with a variety of performance features. There is a wide range of TLEDs if a customer wants to keep a more traditional “socket” approach, including smart TLEDs, such as Philips InstantFit TLED with EasySmart Technology, that allow for wireless independent dimming and regrouping of fixtures for greater flexibility in the room. Philips InstantFit TLEDs are compatible with over 184 existing fluorescent ballasts used in the field today to simplify the retrofit. To drive even higher performance and greater energy savings with socket solutions, new TLEDs can be installed with new LED Drivers as well.

The next rung up would be LED retrofit kits, such as Philips EvoKit. These retrofit kits provide a greater level of energy savings and performance, and have the ability to add individual daylight harvesting and occupancy controls wirelessly to drive added energy savings. Moreover, when the controls option is utilized, the individual fixture(s) can be set to a lower level light output on day 1 to capture additional savings and prevent a space from being over lighted. The flexibility an owner has with this product family is greater, and the fixture settings and groupings can be easily changed with a smart phone app.

And finally, there are new LED troffer fixtures for those customers who want a completely new fixture. Philips EvoGrid matches the look and feel of the EvoKit when a combination of retrofit kits and new fixtures are needed. Additionally, there are new LED troffer fixtures with air handling capabilities for those specialty requirements.

DiLouie: How would you categorize LED troffer/panel products aimed at replacing fluorescent troffers?

Zelinsky: There is a quantifiable performance upgrade with the LED retrofit panels, in addition to an improved look and feel of the space itself. From an aesthetic perspective, a building owner can transform their space from a 1990’s, or older, office look to a modern facility. Moreover, it takes a static lighting environment with basic on/off functionality to a dynamic, adaptable environment when the wireless controls are added.

DiLouie: What are typical energy savings and other advantages of replacing fluorescent troffers with LED troffers/panels?

Zelinsky: By utilizing an LED troffer only solution, an owner can expect to achieve energy savings in the 50% range. Adding the controls options can generally capture an additional 25%.

For example, when Philips Lighting first introduced our LED retrofit solution, our product was installed at the GSA’s Metcalf Building in Chicago. By using an LED troffer/panel retrofit and the wireless controls, we achieved a 75% measured energy reduction which was also independently validated by Lawrence Berkeley National Labs.

DiLouie: What are the disadvantages of replacing the troffer with an LED luminaire compared to TLED lamps and retrofit kits?

Zelinsky: Looking at a new fixture solution versus a retrofit kit or TLED lamps is generally an increase in labor to complete the renovation. Generally it would be important to know what the objectives are by the customer and then to design the most appropriate solution for them.

DiLouie: What are conditions under which replacing the luminaire would be ideal as opposed to replacing the lamps?

Zelinsky: There are different options for consideration, and each one has a different cost consideration. Troffers may have any number of lamps, 1, 2, 3, 4, so one would have to consider the number of lamps and ballasts that an owner has. A four lamp and two ballast fixture may be more expensive to replace individual components instead of putting in a LED retrofit kit or new luminaire.

Additionally, there could be other factors such as utility incentives that could drive preference for one solution over another.

DiLouie: How would you categorize TLED lamps and retrofit kits aimed at replacing fluorescent lamps in fluorescent troffers?

Zelinsky: There is a wide range of products in both the TLED and retrofit kit categories. It is important to match the right light with the right application and customer objectives. Sometimes a combination of different solutions from different categories is appropriate. It might make sense to use EvoKits in general office spaces, and InstantFit TLEDs in storage rooms as an example.

DiLouie: What are typical energy savings and other advantages of replacing fluorescent lamps with TLED lamps and retrofit kits?

Zelinsky: TLEDs can generate energy savings in the 40% range when paired with a traditional fluorescent ballast, and can generate additional energy savings when paired with a dedicated LED driver. Smart TLEDs that can be dimmed can generate even more savings.

As mentioned before, retrofit kits can drive energy savings in the 50% to 75% range.

DiLouie: What are the disadvantages of replacing the lamps in a fluorescent troffer with TLED lamps instead of replacing the luminaire?

Zelinsky: The greatest risk can be compatibility issues with an existing fluorescent ballast. It is critical to know if the TLED has been tested by the manufacturer to ensure that the TLED will perform as expected. The contractor and the owner lose time, money and resources when callbacks occur to figure out why something isn’t working properly.

Additionally, it is worthwhile to consider the age or expected remaining life of the ballast in the fixture. A ballast that may need to be replaced in the near term anyway would wind up adding additional labor costs.

DiLouie: What are conditions under which replacing the lamps with TLED lamps instead of replacing the luminaire would be ideal?

Zelinsky: If the compatibility of the ballast is verified, and a TLED lamp retrofit is in line with the owner’s expectations of how the space will look, feel, and perform in terms of energy consumption, then it is a good match. A lot will depend on the type and age of the existing fixture, and how happy is that owner, or the owner’s tenants, with the existing lighting system.

To help simplify and support the decision making process, Philips Lighting developed a lighting retrofit tool that helps a contractor or even an owner evaluate the different lighting systems from an energy perspective. Then, it would be easy to do a mock up in the space to see how the different solutions would look in the owner’s space.

DiLouie: What control options exist for TLED lamps and retrofit kits?

Zelinsky: Philips Lighting developed EasySense and SpaceWise wireless controls that are an option for any LED retrofit kit or new LED fixture.

Additionally, the Philips InstantFit TLED with EasySmart Technology can be controlled wirelessly and grouped independently. This can be a real game changer for someone with limited resources.

DiLouie: If you could tell all electrical distributors just one thing about retrofitting fluorescent troffers to LED, what would it be?

Zelinsky: The best decisions are made when contractors to talk to their customers and propose a solution that meets their needs. Your customer’s customer will be happier, and you will become a valued resource offering solutions that fulfil the owner’s needs and wants.

DiLouie: Is there anything else you’d like to add about this topic?

Zelinsky: The Philips Lighting Retrofit Tool is a flexible and easy way to develop and test different options in order to identify the best solution possible. It is an excellent resource that can empirically support decisions made in the field.

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Rocky Mountain Lighting Academy 2017 Courses – September 28 to October 1

The Rocky Mountain Lighting Academy (RMLA) recently announced two lighting courses. The RMLA Technical Course and the RMLA Design Course will be offered concurrently from September 28 to October 1….

The Rocky Mountain Lighting Academy (RMLA) recently announced two lighting courses. The RMLA Technical Course and the RMLA Design Course will be offered concurrently from September 28 to October 1.

While participants in both courses will learn some basics of light and vision, visual perception, the IES TM-30 color metrics, light and health, LED systems, the lighting design process and the aesthetics of light, each course will also offer opportunities for in-depth learning in specialized break-out sessions.

The Technical Course offers an intensive hands-on exploration of photometry, optics, and luminaire design software.

The Design Course emphasizes how to develop strong design concepts for interior for lighting applications and how to integrate daylighting with electric lighting.

Click here to learn more.

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2015 RECS Shows Energy-Efficient Lighting Adoption in Homes

Produced by the Department of Energy’s Energy Information Administration (EIA), the 2015 Residential Energy Consumption Survey (RECS) shows growing adoption of energy-efficient lighting in homes. The 2015 RECS shows that…

Produced by the Department of Energy’s Energy Information Administration (EIA), the 2015 Residential Energy Consumption Survey (RECS) shows growing adoption of energy-efficient lighting in homes. The 2015 RECS shows that a majority of U.S. homes feature more than one type of lamp, primarily a mix of incandescent and CFL. But LED adoption was growing, with the percentage of homes reporting at least one LED lamp installed approaching one-third.

Click here to learn about this and other interesting findings at the EIA website.

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Cheryl English Assumes Presidency of the IES (2017-2018)

Cheryl English has assumed the office of President of the Illuminating Engineering Society (IES), succeeding Shirley Coyle. Cheryl English has been a member of the IES for 35 years. She…

Cheryl English has assumed the office of President of the Illuminating Engineering Society (IES), succeeding Shirley Coyle.

Cheryl English has been a member of the IES for 35 years. She has worked for Acuity Brands in a number of positions including application design, testing, education and marketing, culminating in her current position as Vice President, Government and Industry Relations. On behalf of the IES, English helped develop the Joint IDA-IES Model Lighting Ordinance, the IES classification system for Outdoor Luminaires (TM-15) and the first series of IES ED education programs. She has served on a variety of IES committees: Board of Fellows, Medal Award, Marks Award, Lighting Economics, Sustainable Lighting, Educational Materials, Education Seminars, Legislative & Regulatory and Computer. English has been awarded the Distinguished Service Award, the Fellow Award, and an IES Presidential Award.

2017-2018 IES BOARD OF DIRECTORS
Lance Bennett, (Vice-President / President-Elect), Eaton’s Lighting Business
Shirley Coyle, LC, (Past President), Cree, Inc.
James Radi, (Treasurer), Shat-R-Shield

AT LARGE DIRECTORS
Susanne Seitinger, PhD, Philips Lighting
Antonio Garza, Iluminacion Total, SA de CV
Naomi Miller, Pacific Northwest Laboratory
Wilson Dau, LC, Dau Design and Consulting, Inc.
Frank Agraz, Frank Agraz
Francois-Xavier Morin, LC, LightFX

REGIONAL DIRECTORS
Jennifer Jaques, LC, (South Region), Lighting Application Sciences, LLC
Michelle (Shelly) Prew, (Midwest Region), Eaton Lighting
Antonio Giacobbe, (West Region), Acuity Brands
Rick Paradis, (Northeast Region), Synergy Investment

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