Quote Originally Posted by Haruki-kun View Post
They're different... for example, in the US when I drove there last time, I noticed that lights didn't flash. In Mexico, the green light flashes before turning yellow.

We don't see the "faint light", though, never seen it myself.
That's probably because it happens really fast. Like how when you're turning on a light bulb and for a split second it isn't as bright as it can be.