Flickering of LED and Fluorescent Lights Are Bad For You

Flickering of LED and Fluorescent Lights Are Bad For You

Bottom line is that LED lights and especially fluorescent lights flicker and cause health problems for those who work under them. 

Stuck in school all day under these lights?

Stuck in work under these lights?

You need to take your health back and fix this on your own and stop waiting for someone to do it for you!

The quoted text is all from this paper.

"LED Lighting Flicker and Potential Health Concerns:

IEEE Standard PAR1789 Update


The IEEE Standards Working Group, IEEE

PAR1789 "Recommending practices for modulating current in

High Brightness LEDs for mitigating health risks to viewers"

This paper introduces power electronic designers for LED lighting to

health concerns relating to flicker, demonstrates that existing

technologies in LED lighting sometimes provide flicker at

frequencies that may induce biological human response"

There you have it. 

The lighting industry itself has admitted that flicker has effects and they aren't good. 

There is visible flicker and invisible flicker. Visible flicker we notice and invisible flicker our eyes don't perceive but our brain does!

Effects are epilepsy, seizure, headaches, migraines, impaired vision and more. 

Here's something from the paper that was particularly interesting to me, as everyone with red light therapy should know is that most of these devices flicker. 

  • "Wavelength of the light. Deep red flicker and

alternating red and blue flashes may be particularly


  • Open or closed eyes. Bright flicker can be more

hazardous when the eyes are closed, partly because the entire

retina is then stimulated. However, if flickering light is

prevented from reaching the retina of one eye by placing the

palm of a hand over that eye, the effects of the flicker are

very greatly reduced in most patients."



"Wilkins, 1986; Kennedy and Murray, 1991), and two studies

have shown impairment of visual performance in tasks

involving visual search as a result of flicker from fluorescent

lamps (e.g. Jaen et al., 2005). Under double-masked

conditions the 100Hz modulation of light from fluorescent

lamps has been shown to double the average incidence of

headaches in office workers


Some displays on netbook computers have LED backlights

and exhibit significant flicker at 60Hz"

Reduce flicker by working near natural light. 

Find flicker free LEDs

Use Incandescent Lights that don't flicker

Use candles

Work Outdoors



Here's the table from the paper on lighting effects

Flicker in LED lights health effects



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