[odawg]

LED bulbs are hard on the eyes. They blink on and off, although you can’t detect it, but your brain does.

[Paul R.]

Uh, you’d better stay away from any TV or computer monitor then...

(Just kidding, to make a point.) :-)

Note that LED phospors vary. All have SOME persistence (obviously minimized for display screens of most types) & some LED’s / LED bulbs have visible glow well after you turn them off. I’m guessing one’s brain can’t detect the “on and off” of such in normal continuous operation.)

[Paul R.]

To clarify: "I’m guessing one’s brain can’t detect the “on and off” of such the latter in normal continuous operation.)