David Shiller

  A new study investigates the effects of near-infrared radiation (NIR) in ambient indoor lighting on human cognitive performance, emotional state, and cardiovascular health. The research addresses the absence of NIR in modern electric lighting systems and energy-efficient windows, despite its biological activity and therapeutic applications. In a preregistered within-subjects double-blind experiment, 151 university students [...]

UL 153, the Standard for Portable Electric Luminaires, has undergone several revisions in its thirteenth edition, dated April 3, 2024. The key changes include: Power supply clarification for USB/POE connections: Updated sections 8.2, 8.2.1, and 199.1 to clarify power supply requirements for portable luminaires using USB or Power over Ethernet (POE) connections. Convenience receptacle requirements: [...]

  The global economy has entered a new era of geopolitical fragmentation, driven by a series of shocks over the past eight years, including trade conflicts, the COVID-19 pandemic, and ongoing wars in Ukraine and the Middle East. This fragmentation is reshaping investment and trade flows, leading to a reorganization of the global economic landscape. [...]

  IES25: The Lighting Conference The IES 2025 Lighting Conference is now accepting submissions for its call for speakers. IES’ annual conference, IES25: The Lighting Conference, features research, design, technology, and more. It will be held August 21-23, 2025 in Anaheim, CA. Proposals are currently being accepted for the following conference activities: Pre-Conference Workshops Speaker [...]

As Networked Lighting Controls (NLC) systems gain more capabilities, NLC Commissioning Tools are becoming more advanced. One example is the Eiko SEN-S1-RC3 Commissioning Tool, pictured above. A partial list of its capabilities includes: turn on sensor reset to factory default settings tests dimming setting daylight harvesting dim level set target lux level for daylight harvesting [...]

It’s that time of year to do business planning for 2025. There are so many changes occurring in the lighting industry, how can you stay on top of them all? LightNOW is here to help. We’ve published our 25 Lighting Industry Trends For 2025, sponsored by the good people at naturaLED. This white paper is [...]

  NEMA has introduced two new standards. One aimed at evaluating Build American Buy America (BABA) compliance, and the other to define how electric vehicles transfer power back to the grid through EV chargers. These standards impact the lighting and EV charger industries by addressing supply chain evaluation, and electric vehicle supply equipment. Make it [...]

  A significant trend in the job market in 2024 is characterized by a “white-collar recession,” contrasting with a robust blue-collar sector. Major firms across various industries have been laying off thousands of white-collar employees, while blue-collar jobs remain in high demand. In the consulting industry, giants like Deloitte, Ernst & Young, KPMG, and PwC [...]

  A recent discovery about the heart cockle shell’s light transmission properties could have far-reaching implications for various fields of technology and environmental conservation. The mollusk’s special shell channels light to algae living inside it. The heart cockle shell, found to transmit light in a manner similar to fiber optic cables, has caught the attention [...]