Guest Authors

By Dan Hollenkamp, COO at Toggled Dan Hollenkamp, COO of Toggled, shared the following seven trends that he believes will redefine buildings and energy management in 2026: 1) Smart Buildings Become True Energy Orchestrators: By 2026, smart buildings will function more like managed micro-grids as operators face rising energy demand, electrification pressures, and aging infrastructure. Even [...]

  By Eric Bretschneider, Ph.D. Abstract Wien’s Displacement Law is a simple equation that allows calculation of the peak wavelength for a black body light source as a function of temperature.  However, not all uses of light are based on radiant flux. In particular, photobiology is based on the quantum or photon flux.  In 1939, [...]

By Alexander Willemsen, MSE Based on a paper authored by Eric Bretschneider, Ph.D. The Circadian Stimulus (CS) model is one of the most well-known models for quantifying the circadian impact of lighting. One striking feature that separates the model from other contemporary circadian lighting models is its discontinuous action spectrum. As a consequence, the predicted [...]

  By Brent Protzman, Director of Product Management at Lutron Electronics The way we design and use commercial real estate has undergone a fundamental shift. Spaces that were once almost exclusively cubicles and private offices must now adapt to hybrid work models, evolving technology, sustainability mandates, and heightened occupant expectations. Looking forward, the buildings that [...]

  By Allana Wooley, User Experience Lead, Lutron When you think about lighting control, your first instinct may be to picture a physical interface – a wall switch or touchscreen – but today’s smart lighting solutions go well beyond traditional fixture and control aesthetics to holistically manage daylight, support occupant comfort, optimize energy use, and [...]

By Dr. Martin Moore-Ede, Publisher, The Light Doctor If you want to know which wavelengths of light are most important for sustaining human health, look at the opsins. These light-sensitive proteins are a key component of the photopigments in the eye. Each detects specific wavelengths of light and triggers specific physiological responses. Bound to a [...]

By Kris Gjini, Enterprise Solutions Architect, Cooper Lighting Solutions The Unseen Backbone of the Digital Economy Data centers are the unseen backbone of our modern lives. Every email, video stream, online transaction, and cloud-based tool relies on their continuous operation. These facilities are engineered with a relentless focus on uptime and performance. Yet in the [...]

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. [...]

By Christa Belasco, PE, IALD, LC, Senior Lighting Designer, HGA For individuals with neurological conditions such as autism, Asperger’s, ADHD, or Sensory Processing Disorders, a simple visit to the doctor can become an overwhelming sensory experience. Individuals with certain neurological conditions can be particularly sensitive to the sub-visible flicker of direct lighting sources, frequencies that neurotypical [...]