said by Anonymous_:"long tube" have the same effect takes a little longer though. 30min to a hour.
I know my brothers LCD that has HCFL(Hot Cathode Fluorescent Lamps) and I get severe eye irritation and strain in less then 5 min.
(CCFL)Cold Cathode Fluorescent Lamps are not as bad (depending on the quality)
That is interesting. Long tubes with the magnetic ballast have a frequency of 120Hz. Electronics ballast and cfl, led in the +20KHz. So, a large difference. I wonder if it's related to wavelength.
I did a quick Google for some information but found no definitive answer.
Just curious