September 2025

Lighting Design

Speaking Native Architectural Language

  This is my latest article in LD+A Magazine’s September issue. Indian Community School’s lighting retrofit stands as a testament to the power of design in educational environments. Located in Franklin, WI, the school’s original lighting, while functional, failed to honor the architectural language of the building and did not meet the dynamic needs of [...]

Energy + Environment, Products + Technology

Product Monday: Landscape Forms 360 Solar

  The 360 Solar Area Light collection by Landscape Forms, developed in partnership with FlexSol Lighting Solutions, represents the integration of aestetic design and off-grid solar lighting. The solar luminaires are visually distinctive, highly efficient, and resilient across varied environments and climates. Design and Technology 360 Solar features a unique, slim cylindrical profile created by [...]

Light + Health, Lighting Design

Bringing Outdoors In: Daylight Shapes Wellness & Performance

By Carson Alsop, WELL Faculty & Manager of Lutron Electronics’ two New York City Experience Centers We now spend nearly 90 percent of our time indoors, making interior design more critical than ever to our health and well-being. Across green building standards like WELL and the Living Building Challenge, daylight and biophilia are central themes. [...]

Construction + Economy, Lighting Industry

Single Family Construction Down, Multifamily Up

  Recent trends in U.S. housing construction highlight how single-family housing starts have declined while multifamily construction has grown—primarily in smaller and less densely populated markets—during the second quarter of 2025, according to the NAHB Home Building Geography Index (HBGI). Single-Family Construction Declines Single-family construction experienced declines in nearly every region during Q2 2025, signaling [...]

LED + SSL, Research

Researchers Turn Peacock Feathers Into Lasers

  Peacock feathers contain reflective microstructures that can amplify light into laser beams when dyed and energized, representing the first example of a natural laser cavity in the animal kingdom. Discovery of Laser Potential Scientists at Florida Polytechnic University explored whether the intricate ordered structures responsible for the feathers’ well-known structural color—vivid blues and greens [...]

Construction + Economy, Lighting Industry

Recession Concerns Increase As Job Growth Slows

  The risk of a recession in September 2025 is elevated, with analysts citing a combination of slow job growth, persistent inflation, and rising tariffs as key factors pushing the U.S. economy toward a downturn. Some, like Moody’s Chief Economist Mark Zandi, suggest the U.S. is “on the precipice” of a downturn, with the period of greatest [...]

Codes + Standards

Multifamily Lighting Clarifications In 2025 CA Energy Code

  The 2025 California Energy Code (Title 24) clarifies lighting requirements for multifamily buildings. Here is a summary of the lighting changes: Updates mandatory requirements for dwelling units: all installed luminaires and light sources to meet JA8 criteria; removes Table 160.5-A and references. Section 160.5(a)1A Clarifies lighting integral to kitchen range hoods and bathroom exhaust fans do [...]

Light + Health, Research

Molecular Jackhammers & Near-IR Light Kill Cancer Cells

  Researchers have identified a new cancer treatment approach using molecules dubbed molecular jackhammers (MJHs), which are aminocyanines capable of mechanically disrupting cancer cell membranes through vibronic-driven action (VDA) when activated by near-infrared light. Key Concept: Vibronic-Driven Action VDA operates through subpicosecond whole-molecule vibrations of aminocyanines bound to cell membranes, initiated by targeted light exposure [...]

Light + Health, Research

Circadian Lighting Reduced Hospital Patient Falls by 50%

  Circadian lighting in hospital wards was found to significantly reduce falls among patients, by 50%, according to a retrospective observational study published in Healthcare (Basel), in July 2025. Study Context and Purpose Falls in hospitalized patients remain a major safety and health concern, often leading to complications, increased length of stay, and greater healthcare [...]

Codes + Standards

California 2025 Nonresidential Energy Code Changes

  The following lighting and electrical changes were made to the California 2025 Building Energy Efficiency Standards for Nonresidential Buildings: Adds requirements for manual controls to be in same space as controlled lighting, or so that controlled lighting or status can be seen when operating controls. § 130.1(a)2 Multilevel controls must provide and enable continuous [...]

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