Dear Supporters,

The US Insurance Institute for Highway Safety published this study in October, 2025. 
(https://www.iihs.org/api/datastoredocument/bibliography/2347).

The IIHS is funded by the insurance industry.  The goal of the insurance industry is to avoid paying out money for damaged vehicles and injured policy holders.  Therefore, a report such as this one from IIHS does not address the factors that are important to us as citizens such as the photobiological impacts of LED light on our eyes, or the psychological impacts of constant discomfort and pain from exposure to LED headlights.

Therefore, as you can read in the study, the IIHS report acts as a cheerleader for IIHS's own headlamp ratings system and claims that the number of crashes involving headlight glare has not increased.  The analysis even goes on to support the theory that the reduced crashes due to increased visibility from more powerful headlights outweighs any issues with discomfort.

The report made no mention of the photobiological hazards of blue wavelength light, did not delve into the psychological impacts of discomfort caused by headlamp glare, and the raw data is suspect.

This is the type of report that decision makers will use to claim that no additional regulations are needed for LED headlights, while denying reports from the public such as this petition.  We will need to push back against reports such as this one from IIHS that defy the common sense reality that LED headlights are a dangerous scourge.

Sincerely,

Mark Baker
President
Soft Lights Foundation
www.softlights.org
mbaker@softlights.org
X: @softlights_org
Bluesky: @softlights-org.bsky.social