David Shiller

Recreational marijuana was legalized in Ohio by a ballot measure that passed on the November 7 election, with 57% of the vote. More info here. The measure, known as Issue 2, allows adults 21 and over to possess up to 2.5 ounces of marijuana and grow up to six plants at home. Ohio’s passage of [...]

  The DLC recently released an update to the LUNA Technical Requirements to clarify and simplify the testing process for LUNA-eligible products. Table 3 has been added to the requirements, which summarizes worst-case photometric testing requirements for LUNA products for spectrum and distribution. The policy has also been changed so that mounting structures no longer [...]

Many of the acquisitions in the lighting industry are driven by private equity firms. Over the 5.5 years between January 2018 and June 2023, private equity (PE) firms have acquired more lighting manufacturers in the US & Canada than either publicly traded companies or private companies that are not controlled by a PE firm. PE [...]

  IES has published ANSI/IES LM-85-23, Approved Method: Optical and Electrical Measurements of LED Sources, which describes the procedures for optical and electrical measurements of LED packages and arrays. The methods in this LM cover white and single-color LED sources and may also be applied to laser diode sources. LM-85 also covers different measurement methods, [...]

  The M18 RADIUS Site Light/Charger with ONE-KEY sets a new standard for cordless lights. Capable of running off of one or two battery packs, The RADIUS™ Site/Light Charger with ONE-KEY delivers full workspace coverage with 9,000 lumens for maximum 360° coverage. Adjustable output levels give the user the ability to light the site for [...]

  On June 30, 2022, California Governor Gavin Newsom signed SB 54 into law to address the impacts of single-use packaging and plastic food service ware. This law requires that by 2032, single use plastics (packaging & food ware) in CA be reduced by 25%, 65% be recycled, and 100% be recyclable or compostable. The law [...]

  For better and worse, the lighting industry is largely part of the construction industry. It’s that time of year to look at the residential and commercial construction forecasts for 2024. RESIDENTIAL: The National Association of Realtors (NAR) projects existing-home sales will rise by 13.5% to 4.71 million units sold in 2024, from a total [...]

  I researched for hours trying to get a complete picture of the origins, drivers, products, and claims around “less than 2% blue light.” As long as 6 years ago, Circadian Zirclight claimed their office products switched from conventional blue pump white LEDs during the day, to violet pump white LEDs in the evening for [...]

  The IES has published ANSI/IES RP-47-23 Recommended Practice: Landscape Lighting. The PDF of RP-47 can be purchased online here at $84 for IES members, and $120 for non-members. The chapters include: 1.0 Introduction and Scope 2.0 Definition of Landscape Lighting 3.0 Landscape Lighting Design Process 4.0 Understanding Nature and Human Interactions With Landscape Lighting [...]