headlights

Has anyone found any headlights and taillights that are blacked out or smoked out?

Just got my BS Big Bend last week and just drove it for the first time at night the other day. I noticed that when I come to a stop the headlights seem to flash/dim a little and when I accelerate from a stop the headlights seem to flash/get brighter. It is almost as if they a going into a...