It's always sort of puzzled me - why even huge commercial jets have headlights. I mean, if something is on the runway, whether taking off or landing, how are those going to help? I know that they have brakes, but going either way, for most of the run they're pretty much useless. Maybe there are some situations where they might be useful. I assume the reason jets have them is primarily to reduce the amount of runway they need to land. And sure, they're definitely useful in that situation. But I think jets come in at somewhere between 150 and 200 mph. I also assume that in other countries, airport runways might not be well lit. But for the vast majority of the time, if a jet is heading for something, it's gonna get smushed. Well, or it's going to take out the landing gear.
On landing, they also use the thrust reversers. So while on the ground, the brakes really only help on landing and they're already being used in that situation.
Oh, so the point was, that's what you're seeing. The reason you're getting the halos is probably, very high humidity.