My contribution to the March 2020 issue of ELECTRICAL CONTRACTOR covered what we know about the blue light hazard.
The article begins:
Several times per year, an article—typically based on a research study—is published warning consumers about the potential health risks of exposure to blue light produced by LED lighting. The International Commission on Illumination (CIE) responded with reassurance that people are normally not at risk from general white-light sources, including LEDs. Because customers may ask electrical contractors about the so-called “blue light hazard,” ECs should be aware of the issue.
Check it out here.