David Shiller

  Here are four recently approved IES standards:  ANSI/IES TM-39-25 Technical Memorandum: Quantification and Specification of Flicker  This Technical Memorandum (TM) catalogs currently documented metrics and specification criteria related to the human perception of periodic TLM and summarizes existing research. It identifies a path toward an IES standard method for quantifying and specifying flicker for architectural [...]

Here is a quick summary of 6 acquisitions and one divestment, in the fourth quarter of 2024: PE Firm acquired Techlight. Details here. Acuity Brands acquired QSC, LLC, an audiovisual solution manufacturer. Details here. Beghelli was acquired by GEWISS, both Italian companies. Details here. Siemens acquires Toggled as part of Altair Engineering acquisition. Details here. [...]

The Producer Price Index (PPI) report from the U.S. Bureau of Labor Statistics indicates that while plywood prices have fallen, most other key hardware and building supply commodities have increased in price. Light Fixtures: The price of light fixtures increased 2.9% in January 2025 compared to January 2024. From December 2024 to January 2025, light [...]

  The Hort V4.0 draft was sent out for comments in November and the comment period concluded in December. With few comments received, DLC is preparing to release the final V4 Technical Requirements, in March. Hort V4.0 introduces three key updates to the Hort Technical Requirements that support the acceleration of energy efficient lighting in [...]

LED Lighting Supply has introduced a new indirect LED lighting solution for indoor sports courts and high-ceiling athletic facilities. This innovative system directs light upward to the ceiling or outward to the walls, addressing common drawbacks associated with conventional direct lighting options, such as harsh glare and uneven brightness. Reflectance of the ceiling and walls [...]

  LEDucation 2025 LEDucation 2025 will be held March 18 & 19 at the New York Hilton Midtown, in New York City. There will be over 400 exhibitors and 45 conference sessions available. LEDucation registration is now open here. LightNOW is a media sponsor of LEDucation and we will be staffing a media table at [...]

Editor’s correction: The original version of this story listed a simple payback calculation based on the project’s cost divided by annual energy cost savings. I’ve since learned the energy savings figures were based on lighting and controls savings only. The HVAC energy savings have not yet been determined for this project, and will require more [...]

  DNV, a leading utility evaluation and verification contracting firm, has published the LightingPLUS Market Characterization report. This is a joint study by 11 program administrators (PAs) from the U.S. and Canada, investigates the evolving commercial and industrial (C&I) lighting market. The study focuses on quantifying the remaining opportunities for legacy lighting replacements with LEDs [...]

At a time when many lighting trade publications are closing up shop, it was great to learn of a new lighting publication’s launch, Lighting News Now (LNN), led by industry veteran, Linda Longo, as Editor-in-Chief. The new online publication reports on the decorative residential lighting industry. Given all of the talk and uncertainty around tariffs, [...]