A security policy is only good if it’s implemented. For example, the elementary school in Uvalde, Texas had a policy of keeping exterior classroom doors locked, but when that protocol was not followed, disaster ensued. Developed to help school staff more quickly and easily spot potential breaches as well as communicate emergency safety cues, a…
As an update to NEMA LSD 81-2019, the recent NEMA LS 20009-2022 Controlled Emergency Lighting bulletin incorporates changes in the 2023 National Electrical Code® NFPA 70® that address the increasing complexity of emergency lighting systems, specifically regarding improved definition and requirements for directly controlled luminaires. The technical clarification bulletin, from the National Electrical Manufacturers Association…
Of course lighting professionals know what lumen depreciation is and how it works, but there are some subtle factors affecting those calculations that aren’t often top of mind. A new article by CREE details the critical considerations to take into account when specifying a job. We are sharing the insights below. WHY LUMEN DEPRECIATION IS…
Clients are increasingly interested in wellness attributes for their commercial, hospitality and residential properties, but investors – and even specifiers – are reluctant to go all-in, citing a lack of definitive proof regarding health benefits. With the global wellness market worth an estimated $4.4 trillion as of 2022 (and the U.S. market alone valued at…
A team of researchers has found that the conversion of outdoor lighting to LEDs across Europe has led to a new kind of light pollution.
