On Sep 12, 9:55*am, RHF wrote:
On Sep 12, 7:14*am, dave wrote:- - wrote:

- - Over the years some people claimed that
- - florescents cause vision impairment. Seriously.

- Psychosomatic twaddle.
-*An incandescent lamp pulses 60 times a second,
- a CFL flashes 10,000 times a second.
- Imperceptible to the human eye.

'Special Dave',

That was a 'claim' about old time Fluorescent
Light Tubes; and had to do with the Flickering
and Color; while working in Offices 40 HaW+

Yes new CFLs do have far less 'Flicker' and the
Color of the new CFLs is greatly improved.

~ RHF
*.
*.

I believe that is precisely what they claimed.Many moons ago.