My name here is fairly obvious and must have taken me all of a nanosecond to come up with when I first registered here.
Elsewhere, Daz, Youtube, etc I'm Flickering Light (also my VJ name) which is a reference to the effect of same on the human eye, in particular the refresh rate of old analogue TV's invisible to the naked eye, but sufficient to trigger the fright or flight reflex, which is/was why when there's a Tv in the room even if it's showing football you end up watching it. 
In public it serves as a warning and disclaimer, don't want to cause harm to (or get sued) by photo-sensitive epileptics.