Month: October 2016

Product Monday: TruGroove Suspended LED Luminaires by Philips Ledalite

Philips Ledalite’s TruGroove Suspended LED provide a wide-throw batwing distribution using a familiar profile, which allows for wider row spacing and fewer luminaires. The luminaire produces 3,928 lumens with an…

Philips Ledalite’s TruGroove Suspended LED provide a wide-throw batwing distribution using a familiar profile, which allows for wider row spacing and fewer luminaires. The luminaire produces 3,928 lumens with an efficacy of 115 lumens/W. CCT 3100K and 80 CRI.

Click here to learn more.

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OLED’s Obstacles

ARCHITECTURAL LIGHTING recently published an article evaluating OLED general lighting technology and the obstacles facing broader adoption. Check it out here.

ARCHITECTURAL LIGHTING recently published an article evaluating OLED general lighting technology and the obstacles facing broader adoption.

Check it out here.

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Lighting for The Aging Eye

In this visual presentation, the Lighting Research Center’s Mariana Figueiro discusses the aging eye’s response to light and what lighting practitioners should do about it. Check it out here.

In this visual presentation, the Lighting Research Center’s Mariana Figueiro discusses the aging eye’s response to light and what lighting practitioners should do about it.

Check it out here.

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Vermeer: Master of Light

Johannes Vermeer was a Dutch painter in the 1600s who mainly produced paintings of domestic interior scenes. He is most celebrated for his extraordinary use of light in his paintings….

Johannes Vermeer was a Dutch painter in the 1600s who mainly produced paintings of domestic interior scenes. He is most celebrated for his extraordinary use of light in his paintings. Light, typically daylight, permeates his scenes, beautifully rendering his subjects using light and shadow.

Check out this documentary about Vermeer’s work and his brilliant use of light, which distinguishes his work among the greats.

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NALMCO Launches New Controls Certification

The interNational Association of Lighting Management Companies (NALMCO) has launched a new lighting controls certification, the Certified Lighting Controls Professional (CLCP). The certification is based on the Education Express curriculum…

The interNational Association of Lighting Management Companies (NALMCO) has launched a new lighting controls certification, the Certified Lighting Controls Professional (CLCP). The certification is based on the Education Express curriculum developed by the Lighting Controls Association. The announcement was made at the organization’s annual conference in Dallas, TX.

The lighting industry is undergoing massive change due to growing demand for intelligent LED lighting systems and controls. LED lighting, which promises high operating cost savings, is ideally paired with both wired and wireless intelligent lighting controls, which promise additional savings and flexibility. Accelerating demand for these technologies is transforming workspaces while reducing costs. It is also creating an education gap among service providers unfamiliar with aspects of the technology.

The electrical industry has responded with a series of initiatives, but to date, there has been no national certification signifying a high level of general expertise in lighting controls technology, application, design and commissioning. To address this need, NALMCO developed the Certified Lighting Controls Professional (CLCP) designation.

The CLCP is based on 60 hours of the education curriculum developed by the Lighting Controls Association’s Education Express online education system. Certification is available to anyone in the industry.

Education Express provides in-depth education about lighting control technology, application, system design and commissioning. Now celebrating its 10-year anniversary, it serves more than 25,000 students, who have completed more than 205,000 learning modules and 140,000 comprehension tests taken for education credit.

Click here for more information about the CLCP designation.

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Product Monday: Glide Up/Down by Edge Lighting

Edge Lighting’s Glide Up/Down linear LED luminaires combine the traditional with the contemporary, offering five classic wood and three contemporary glass finishes. Separately switched up/down LED lighting allows the user…

Edge Lighting’s Glide Up/Down linear LED luminaires combine the traditional with the contemporary, offering five classic wood and three contemporary glass finishes. Separately switched up/down LED lighting allows the user to tailor the appearance of light within a space.

Click here to learn more.

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Interview with Hubbell’s Martin Werr on LED Trends

I recently had the pleasure of interviewing Martin Werr, Director of Product Innovation, Hubbell Lighting. The topic: trends in indoor luminaire design. I’m happy to share his responses with you…

I recently had the pleasure of interviewing Martin Werr, Director of Product Innovation, Hubbell Lighting. The topic: trends in indoor luminaire design. I’m happy to share his responses with you here. The interview informed an article I wrote for the October 2016 issue of tED.

DiLouie: How would you characterize demand for LED luminaires in indoor commercial building applications in the new construction market? What is current market share in the new commercial building construction market for indoor LED luminaires? What are the hottest applications for sales?

Werr: LED lighting in the indoor new construction market has been a steep growth trajectory for the past four years, finally reaching the point where LED products now account for a larger share of the market than legacy technologies. There are effectively no remaining untapped areas where LED technology is not widely accepted and embraced.

DiLouie: How would you characterize demand for LED luminaires in indoor commercial building applications in the lighting retrofit market? In your estimation, what percentage of retrofit projects involves luminaire replacement with LED luminaires versus changing out the lamp to a new light source? What are the hottest applications for sales?

Werr: While most retrofit applications involve new luminaires, a significant percentage of customers accept half-measures through the use of LED replacement lamps in an effort to mitigate first costs. Typically, however, these result in less-than-ideal performance compromises. One exception can be luminaire retrofit kits that can provide state-of-the-art LEDs and drivers that perform as well as new lighting fixtures. Significant sales opportunities include warehouse and office relights, made even more attractive by utility rebates and closing the price gap between LED and legacy sources, particularly when dimming capability is factored in.

DiLouie: What are the most popular applications for LED luminaires in indoor applications?

Werr: The most attractive applications are, of course, those that deliver the greatest benefit per luminaire, pointing directly to warehouse high bay relight projects. Replacing HID—or even fluorescent—high bays with LED units can deliver extremely high wattage reduction per fixture. The second big opportunity is to replace the office lighting. Although the per unit wattage savings are lower than for high bays, the sheer quantity and ease of replacement makes for great ROI opportunities. Again, utility rebates can ease the labor cost impact, and the long lifespan of LEDs can reduce maintenance costs.

DiLouie: What are the top 3-5 trends in indoor LED luminaire design today?

Werr: The single biggest trend is the inclusion of dimming capability as an integral and expected function of nearly all LED luminaires—once a luxury upcharge for fluorescent and impossible for HID. Those in the market would be wise to choose a manufacturer that offers products with dimming capability at no additional cost. An additional benefit that comes along with standard dimming capability is the trend toward “smart sensing” in which each fixture may have integral occupancy/vacancy sensing, daylight harvesting or both, which maximizes energy conservation fixture by fixture. Those in the market can find fixtures that offers these options at a modest premium. Another trend is the ease through which lighting specifiers can select the lumen and wattage packages most appropriate for their projects. We offer our customers the ability to select light output levels in increments as fine as 50 lumens.

DiLouie: What impact are these trends having on the market in terms of moving the ball forward, satisfying users, and exceeding current conventional lighting offerings?

Werr: The trends emerging via LED technologies permit specifiers, owners and occupants to control their lit environments with unprecedented precision, comfort and energy savings.

DiLouie: Where do you see these trends going in terms of future direction?

Werr: The more the market embraces the unique features afforded by LED luminaires, the less expensive those features become, leading to increasing acceleration of adoption.

DiLouie: What do you see as future trends in indoor LED luminaire design that will become possible as the technology continues to develop?

Werr: One lightly tapped potential enabled through solid state technology is the ability to provide customized spectra tuned to the specific needs of non-human biology. For example, we offer an LED product that optimizes horticultural illumination by emitting light only in wavelengths needed by the process of photosynthesis.

DiLouie: Please comment on the evolution of optics for indoor LED luminaires, giving particular focus on how optics have changed to accommodate the LED light source.

Werr: Precise optical design for many applications becomes more effective the smaller the source gets. LEDs, being as near to pure point sources as our industry has ever seen, present optical engineers with unprecedented ability

DiLouie: Please comment on the evolution and demand for indoor LED luminaires that feature serviceable components such as light engines, drivers, heat sinks and optics.

Werr: One unfortunate byproduct of the LED revolution has been the proliferation of “throwaway” luminaires that lack serviceable light engine components. Granted that certain specific applications make serviceability impractical, for most applications such as recessed troffers and high bays, specifiers and end users should insist on light engines, drivers and optics that can be replaced or upgraded from below. Despite the implication from some lower tier manufacturers, LEDs do not last forever, and even if they did, they are continuously improving in performance. Responsible manufacturers provide the ability to upgrade luminaires as more energy-efficient light engines become available.

DiLouie: Please comment on the evolution of form factors for indoor LED luminaires and viability of new form factors.

Werr: The most obvious impact on form factor for LED luminaires is the compact size of the light source. With small sources like LEDs, not only do they take up less physical space, but to achieve effective optical distribution, they reduce the distance needed between the source and light shaping elements such as refractors and reflectors. The small form factor of the LD, however, does not necessarily lead to smaller luminaires. Offsetting factors such as thermal mitigation, the ubiquitous 2’x2’ and 2’x4’ grid ceiling and the ongoing need to manage luminance to reduce glare imposes practical limits on the physical dimensions of luminaires.

DiLouie: What should distributors be doing right now to maximize the value they offer to their customers in lighting projects featuring LED products?

Werr: The first benefit distributors can offer in the LED revolution is in customer education. It is essential to become fluent not just in concepts like efficacy, CRI and CCT, but also in topics such as LM-79 and LM-80, TM-21 (reported vs. calculated) and MacAdam Ellipses to help dispel the widespread misunderstandings about the application of LED fixture.

DiLouie: If you could tell the entire electrical industry just one thing about trends in indoor LED luminaire design for commercial building applications, what would it be?

Werr: With steadily improving performance and falling cost of ownership, LED luminaires will all but displace incumbent technologies in a few years’ time, and a viable future usurper has yet to appear on the horizon.

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Lighting Controls Association Adds New Course on Tunable-White Lighting

The Lighting Controls Association (LCA) has published a new course to enhance its popular Education Express program: EE303: Tunable-White Lighting. As acting education director of LCA, I was happy to…

The Lighting Controls Association (LCA) has published a new course to enhance its popular Education Express program: EE303: Tunable-White Lighting. As acting education director of LCA, I was happy to have the opportunity to author this content.

LED lighting technology promises many benefits, one of which is practical color output tuning. Popular approaches include full-range, dim-to-warm and white light tuning. EE303 covers tunable-white lighting technology and application. Students learn color fundamentals and how to select and apply appropriate color-tuning approaches and tunable-white lighting technologies.

EE303 is registered with the American Institute of Architects (AIA) Continuing Education System (CES), which recognizes 2.0 Learning Units (LU)/Health, Safety, Welfare (HSW) credits; and the National Council on Quality in the Lighting Professions (NCQLP), which recognizes 2.0 LEUs towards maintenance of the Lighting Certified (LC) certification.

To register and take this course, click here and then click the Education Express button on the right.

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Interview with Juno’s Scott Roos on Light and Health

I recently had the pleasure of interviewing Scott Roos, Vice President Product Design, Juno Lighting Group (Acuity Brands). The topic: lighting and health. I’m happy to share his responses with…

I recently had the pleasure of interviewing Scott Roos, Vice President Product Design, Juno Lighting Group (Acuity Brands). The topic: lighting and health. I’m happy to share his responses with you here. The interview informed an article I wrote for the August 2016 issue of tED.

DiLouie: What do we currently know with a fair degree of certainty about the relationship between light and health?

Roos: We know with certainty that for normal populations exposure to blue rich light during the day supports optimal circadian health, and exposure to blue rich light at night disrupts our circadian rhythms with negative consequences for sleep and health.

DiLouie: What don’t we know yet? What research is being done to gain this knowledge, and how might it affect lighting practice?

Roos: Our knowledge of how specific wavelengths, doses and exposure times impact our various biological, physiological and behavioral systems and how these can be effected by personal factors such as age, caffeine consumption or specific health conditions, while increasing, is still limited. Numerous research studies continue to be conducted by both the public and private sector. As these research results along with early adopter applications come online with evidence- based results, our knowledge base and ability to provide more concrete recommendations for lighting practitioners will continue to increase. The most comprehensive listing of research in this field can be found on the Lighting Research Center website http://www.lrc.rpi.edu/programs/lightHealth/research.asp. It is also important to understand that the study of light and health is a subset of a larger emerging field of study known as circadian medicine, of which light exposure is an important, but not the only component.

DiLouie: The relationship between light and health is now turning into a conversation about best practices related to lighting design and health. What can the lighting industry definitively claim at this time?

Roos: First, there is no substitute to being exposed to natural light. Taking time in the morning and during the day to go for a walk may sound simple, but it is probably the best way to optimize your circadian entrainment. Likewise, there are numerous studies going back many years that show how day lighted interiors with a view support health and well-being.

Second, during the day when indoors, while we may not know everything about how the exact spectra and amount of artificial lighting effects our health and wellbeing, for normal populations you probably can’t have too much illumination or too cool of a color quality of light. Typical indoor artificial illumination is much warmer and at much lower levels than what we experience outdoors.

Third, at night minimize both the amount and the blue content of light.

And fourth, recognize that negative lifestyle habits, including using self-illuminated devices at night, can negate the impact of even the best thought- through interior circadian-sensitive lighting plan.

DiLouie: How do you feel about where the industry is currently going with this? Do you think we’re getting it right? Where are we getting it wrong? How close are we to an industry recommended practice?

Roos: The “typical” lighting scenario of working in a cool, brightly illuminated office during the day and a warmer, more dimly illuminated home environment during the evening is actually spot-on in terms of supporting good circadian health for normal populations. We are starting to characterize the circadian content of various light sources, which is different than the visual amount of light as measured in lumens or footcandles. Understanding this will help us do a better job selecting the most efficient light source in terms of either eliciting a circadian response during the day or preventing it at night. And optimizing the circadian content of a lightsource will allow us to stimulate a circadian response with lower levels of illumination, which will address the concern over having to using more energy for circadian lighting installations. As we continue the migration toward LED technology we will have more refined ways to optimize the quality and amount of light both during the day and at night.

For example, we can now spectrally tune LEDs both to insert or remove blue content and can specify warm dimming as an option on an increasing array of luminaire types. As far as IES recommended practices on Light and Health, while we can reasonably expect to start seeing references made to this subject in various publications, including the soon to be updated IES RP-29 Lighting for Healthcare Facilities, specific recommendations are still several years away. It is one thing for someone like myself who follows this topic to express opinions based on reviewing research, presentations and having discussions with leading experts. It is yet another for an industry organization such as the IES to publish recommendations that need to be based on exacting research and evidence-based results. By the time these are available I expect that the basic principles of healthy circadian lighting for normal populations will already be widely understood. The biggest impact that the recommended practices will likely have is on the nuanced use of lighting for non-normal populations such as shift workers, less mobile elderly in extended care facilities and people with specific health conditions.

DiLouie: In healthcare environments, what role can lighting play in facilitating well-being and enhancing the treatment and healing process?

Roos: The answer to this question contains both simple and complex components. The simple components involve providing as normal of an exposure to simulated day/night quality and cycles of illumination for the benefit of the patients. The medium complexity issues are how to best keep healthcare night shift workers alert, productive and less error prone while supporting their circadian health. And the most complex aspect of this, relating to enhancing the treatment and healing process, will be borne out of the growing body of research where scientists are studying the effect that different spectra, amounts of light, exposure times and time of day that exposures are administered have on various medical conditions and the efficacy of the plethora of pharmaceutical treatments.

The first issue can be addressed by the lighting practitioner with a modest bit of research and education. The second issue can be addressed by the lighting practitioner in cooperation with experts on 24/7 work environments and circadian health. This likely will entail both the specification/installation/commissioning of a given lighting system and ongoing monitoring of shift workers’ biological markers with real-time feedback to adjust the lighting system as needed. And the third issue will fall mostly outside the scope of a lighting practitioner and into the domain of a healthcare professional. The lighting practitioner may be directed to specify a given luminaire, likely listed with the FDA as a medical device, with a given set of capabilities and be responsible to place the fixture(s) such that their location and interaction with room surfaces optimizes the amount of light actually reaching the patient’s eyes. But a healthcare professional will be responsible to select the exact spectra, amount, timing and duration required for a given patient.

DiLouie: What are the benefits for owners of commercial lighting systems for giving design priority to lighting that is conducive to circadian health?

Roos: While still very early in the adoption cycle there is a small, but growing body of early-adopter applications that are demonstrating that the principles of optimized circadian lighting as proven in laboratories can indeed improve an occupant’s productivity, health, sleep and emotional well-being. This applies across a wide range of applications ranging from sports team locker rooms, classrooms, special education facilities, extended care facilities offices and 24/7 industrial operations. Each different application will yield its own set of benefits for which the building owner can decide if it is worth the extra effort and cost to achieve. For a school it might be higher student achievement/attendance. For an office it might be higher employee productivity & morale, reduced sick days/medical claims and lower turnover. For a healthcare facility it might be quicker patient healing times, improved health & attendance of night shift staff with a lower rate of errors. And in a 24/7 industrial it could be improved worker safety, performance and attendance.

DiLouie: What should electrical distributors be doing at this time to properly promote and sell lighting solutions that are conducive to health?

Roos: The biggest thing that an electrical distributor can do at this point in the adoption cycle is to educate themselves such that they can at least bring up the opportunity and benefits that optimized circadian lighting can have, on top of basic energy savings, to their clients, and then position themselves to partner with independent consultants and knowledgeable manufacturers to help them recommend and implement the best solutions. Also, it is important to be able to recognize and point out situations that can be especially detrimental if circadian lighting principles are not adhered to. For example, if you are working on project to light classrooms or lecture halls that will be used both during the daytime and evening, you owe it to your customer to make them aware that providing blue rich light in a classroom at night can negatively impact student performance and well-being. Or, if you are lighting an extended care facility consider recommending that your customer work with an expert to optimize the lighting such that it will significantly improve the physical and emotional health and social integration of residents, help improve the working conditions for staff and likely lower the cost of care.

DiLouie: If you could tell the entire electrical industry just one thing about lighting and health, what would it be?

Roos: The whole field of circadian medicine, which includes circadian lighting, is an emerging field that is poised to have a monumental impact on human health, well-being and productivity. It will increasingly effect preventive health, medical treatment protocols and guide how we light our daytime and nighttime environments. Like any new field it likely will take a decade or more to become mainstream, but that creates a great opportunity for you to lead your organization into this emerging field and create your network of experts that allows you to step into a non-commoditized “blue-ocean” field and differentiate yourself in your served markets. Don’t take my word on it…do your own research, starting with the information posted on the Lighting Research Institute and Human Centric Lighting web sites, and form you own conclusions.

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AIA Survey Finds Healthy Buildings Becoming Key Design Priority

Nearly three quarters of U.S. architects say the health impacts of buildings are influencing their design decisions. That finding parallels a strong market demand by building owners, with a solid…

Nearly three quarters of U.S. architects say the health impacts of buildings are influencing their design decisions. That finding parallels a strong market demand by building owners, with a solid two-thirds surveyed also reporting that health considerations affect how they design and construct buildings.

These findings and others were recently released in a new report, The Drive Toward Healthier Buildings 2016 by Dodge Data & Analytics, in partnership with Delos and the Canada Green Building Council, and with the participation of the American Institute of Architects as a critical research advisor and partner.

According to the report, the top five healthier building features implemented by architects include:

· Better lighting/daylighting exposure

· Products that enhance thermal comfort

· Spaces that enhance social interaction

· Enhanced air quality

· Products that enhance acoustical comfort

Use of nearly all of these is expected to grow considerably, the report found.

The findings suggest electric lighting and daylighting will play a leading role in this trend.

Check out the report here.

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