Can LED lights cause cancer?

Published: 16.1.2023

Modified: 28.2.2025

Reading time: 9 minutes

Author name: Janne Halttu

Summary

LED lights do not directly cause cancer, more research needed
Night lights can disrupt circadian rhythms and increase cancer risk
Blue-tinted LED light may increase breast cancer risk in rats
Studies show links, but do not prove cause and effect
LED lights are not the only source of blue light, devices also contribute

Janne Halttu

Janne Halttu Owner

LedStore.fi entrepreneur who has built 4 detached houses and renovated several properties. 20 years of construction experience has given me a lot of knowledge about structures, and electrical work for several houses. I have worked with LED lighting for over 10 years. I am an expert in Led lighting, I write articles and I am a lighting designer. I often help clients with electrical and structural issues related to lighting and house construction.

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