In article , Mortimer
says...

Actually a flashing LED light, whether at the front or the back, is *much*
easier to see and to distinguish from all other lights, reflections of
lights off shiny objects etc.

Not when you're driving a lorry and overtaking them. You can't see them
at all once they've dropped 20ft back from the front of the cab.


--
Conor

I only please one person per day. Today is not your day. Tomorrow isn't
looking good either. - Scott Adams