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The US Department of Energy has for many years been promoting the development of LED lighting and encouraging the adoption of LEDs for street lighting. Their research "mouthpiece", Pacific Northwest Research Laboratory, published a "Frequently Asked Questions" document in support of LED street lights in response to the American Medical Association's 2016 recommendation to limit LED street lights to CCT values below 3000K in order to reduce the risk of melatonin suppression (which has been linked with increased health risks such as cancer, diabetes and cardiovascular disease, to name just a few). That document suggested that having short wavelengths included in LED highway lighting would improve road safety, because research had indicated that short wavelengths enhance peripheral vision acuity under mesopic lighting conditions: "It stands to reason that improved visual performance can bring associated safety benefits". That presumption was, at the time, untested (at least, in the USA - research in the UK had already disproved this hypothesis). More recently, PNNL have undertaken their own research to investigate whether changing street lights to whiter LEDs actually improves road safety. This study is mentioned (but well tucked away) on the DoE website, and one might wonder why, until one reads ... "The analysis found no statistically significant difference in vehicle crashes between municipalities that had converted to LED versus those that had not converted" ... which completely invalidates the promotion of blue-rich LED street lighting that the same establishment had put out to contradict the guidance on public health grounds issued by the AMA! Why is this finding so well hidden on the DoE website, and why has the "publication pending" mentioned on the DoE website apparently not yet happened? A Google search for the title of the research "Estimating the Effect of LED Streetlight Conversions on Crashes" finds no results, other than the mention of it on an obscure DoE web page that one pretty much has to know about in advance (or be a very determined data researcher) to be able to find! Well here it is, so you can read this momentous announcement by the DoE for yourselves. https://lnkd.in/eE7Wb8Us

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The Dark Side of the Lighting Industry: Selfishness and Lack of Community Discover the ugly truth about the lighting industry. Find out why selfishness and a lack of community are hindering progress in this field. Join us as we discuss the importance of unity and helping one another. #LightingIndustry #CommunityUnity #IndustrySelfishness #BuildingConnections #SupportEachOther #IndustryChallenges #LightingCommunity #ProgressTogether #IndustryInsights #CollaborationMatters

Empower your senior loved ones with visual impairment by implementing these practical tips at home. From optimizing lighting to embracing technology, learn how to enhance safety and ease in their living environment. #SeniorCare #RightAtHome #VisualImpairment https://lnkd.in/g6-RqAmu

Should government departments be sponsoring sham research to justify what they are doing? The US Department of Energy has a project under way to replace all highway lighting in the USA with LEDs. As part of this project they are undertaking some research, and according to them; "The results of the study will help enable improved guidance as to the optimum light spectra for roadway use. The results will also inform the public on the health impacts of outdoor lighting – not just on drivers, but also on pedestrians and individuals with bedrooms exposed to street lighting." https://lnkd.in/eE7Wb8Us This seems like an essential piece of research to undertake BEFORE embarking on a nationwide conversion of outdoor lighting, since the conversion to solid state lighting has generated concern from the American Medical Association, which in 2016 advised that the CCT value of LED street lighting should be restricted to a maximum of 3000K to minimise the risk of melatonin suppression, which in turn is linked to serious health impacts including an elevated risk of cancer. The research cited on the above web page was sponsored by the DoE and carried out at the Virginia Tech Transportation Institute. Unfortunately, rather than using the more reliable blood plasma measurement to assess melatonin suppression, because of restrictions placed on the study by the VTTI IRB committee and LIMITED FUNDING (according to Ron Gibbons, the lead author of the paper), they used only salivary melatonin assays. These were incapable of detecting any meaningful melatonin suppression data, as my critique of the study explains here: https://lnkd.in/eqH4yqtB Since the assay method was barely able to detect a characteristic melatonin suppression profile under extremely bright light conditions, and gave anomalous results under dim lighting conditions, I fail to understand how this research passed peer review. In my opinion, the findings of this research are meaningless. No amount of explanation of the limitations of the study within the body of the paper will cancel out the false impression about the safety of LED lighting that is conveyed by the stated results. To me, this appears to be a well constructed, stage-managed piece of theatre designed from the outset to support the DoE's objectives. It is not credible science, in my opinion, and it certainly does not adequately inform the public about the health impact of outdoor lighting - it conveys a completely false impression, which appears to me to be deliberate. Please read my critique of it, and make up your own minds.

Curious about the latest in lighting technology? Dive into this enlightening article on circadian lighting and discover how it can revolutionize your integration projects! ??? Check it out: https://ow.ly/czRM50RjqnQ #AVTweeps #LightingDesign #HumanCentricLighting

As we come to the end of 2023, I just reflect on an interesting and successful year. Our Lighting business has grown and diversified across all applications of lighting thanks to our wonderful team. Did you know that globally we have just under 200 lighting professionals engaged in every aspect of light and lighting? For me it has been a great year, I feel privileged to have been involved to help the industry move good lighting practice forward, nationally and internationally. My headliners …. House of Lords Science and Technology committee, obtrusive light / potential adverse health effects of artificial light investigation. Helping develop the Institution of Lighting Professionals (ILP’s) written evidence and being invited to give verbal evidence was a great experience. The Governments response, which I have to say is under whelming was published on 1 December. The industry is not allowing this to rest, the UK Lighting Laision Group (LLG) (I am the secretariat) represents professional, industry and government bodies interested in lighting. The LLG has a working group undertaking a review of the HoL report, considering gaps in existing good lighting practice and how we can influence change to bring a better understanding and evidence of obtrusive light and its potential adverse health effects. Governments Eco-design The UK LLG had a terrific success in changing Government policy and regulations regarding lighting eco-design. Whilst bringing energy savings which the LLG fully support is was at the decrement to good lighting practice removing key light sources from the market. The LLG as one voice and through evidence collected (special thanks to the Lighting Industry Association) the policy was dropped. International Commission on Illumination (CIE) I have been the Excetutive Secretary to the CIE-UK for many years but recently have taken interest in their Technical committees (TC’s). To be part of a TC working with global lighting is an education and rewarding experience. I sit on the following: TC 4-53 Tunnel lighting evolution, revising CIE88 Guide for the lighting of road tunnels. TC 4-58 Obtrusive light from colourful and dynamic lighting and its limitations. The work of these panels takes years to come to completion, but I am pleased to say that as thoughts develop, they get applied. I led the 2023 update of ILP PLG05 Brightness of illuminated advertisements to include digital media displays. Calling upon CIE expertise and importantly the digital media industry so these displays can be successfully integrated into appropriate locations. There were many other activities, most carry on in 2024 which I look forward to. None of this is done alone, I am privileged to be working with many experts who all bring and willingly share their knowledge and experience. A big thank you must also go to WSP for their proactive support and encouragement for myself and colleagues to be actively involved in their professional industries.

Austin, Texas, often faces extreme temperatures, with highs exceeding 100°F and lows in single digits. Older homes here typically have energy-inefficient infrastructures, leading to higher bills and inconsistent heating and cooling. A pair of Millennial homeowners recently aimed to purchase an energy-efficient home but fell in love with a 20-year-old ranch on 2 acres. To transform it into a sustainable and economical dwelling, they replaced the outdated HVAC system with advanced LG Air Conditioning Technologies USA multi-zone HVAC solutions to meet the needs of three distinct zones. The new LG HVAC systems harmonized temperatures, increased comfort and control, and reduced utility bills, significantly lowering the home’s environmental footprint. “Now, with all the changes and upgrades, I have a smaller carbon footprint,” the owner says. “It feels healthy, new, and clean, and I hope it inspires others to build greener!” #RetrofitHome #Retrofit#EnergyEfficiency #HomeImprovement #HVAC #LG #TexasHomes #SmartHome ??: Brian Cole Photography | LG Electronics

It's been a very interesting journey getting to learn the #homeimprovement sector through the lens of Generator Supercenter of the Mainline. Beyond the simple solution of "we get your light back on within 30 seconds of a power outage", there are so many other pertinent issues in which our customers are interested. Read our latest entry on our blog Beyond the Grid of how parents of young children could find a Generac valuable.