Visibility and colour

[JonE]

I had been thinking about the tractors on A roads... and having orange flashing lights up high. As a cyclist using intermittent flashing red at the rear anyway and quite content with that (is it legal for bikes, as everyone sells them?) what about using amber flashers? I have a bike one, and not sure what it was intended for - perhaps for atop a helmet on a band...

I'm not terribly bothered by law here. Being alive better, and there aren't many police around.