Originally Posted by
base2
And while we are solving the above equation to quantify actual risk, How many bike lights strobe at 15 to 20 flashes per second? You know...the most likely kind to trigger a seizure? A quick Google search for: "20 hertz bicycle light" yields zero results.
Approaching zero risk?
No.
Zero.
Seizure inducing bicycle lights are not commercially manufactured on planet Earth.
From the Epilepsy Society website:
https://www.epilepsysociety.org.uk/p...y#.XQ0i_YhKhph
"Between 3-30 hertz (flashes per second) are the common rates to trigger seizures but this varies from person to person. While some people are sensitive at frequencies up to 60 hertz, sensitivity under 3 hertz is not common."
Any more artificial goal post moving you want to do?
Also, I don't find a lot of really clear results when I google "hertz" and "bicycle light". The advertised specs tend to be lumens, not hertz, so I don't really know what the normal rate for these strobes are. I'm sure I'm seeing a lot faster than 3 hertz in the wild, but I really can't count much faster than that.