Thread: headlights flicker and pulse.

Does anyone know what would make the headlights (most noticeable)and other lights on my 97 GPGT pulse and flicker?
This has been happening for about a month now.The alternator was checked a few days ago,but the battery light came
on last night,on the way home.I've read the solution to this problem before on here, but don't remember because I wasn't
experiencing the problem at that time.

All power wires are clean and tight.I'm thinking it may be a voltage regulator,even though the alternator isn't a year old yet.