Three or four very large bright white tubular lights that were packed together and pulsating in unison.I was traveling on Interstate 95 in the southbound lane between exits 191 and 187, when I saw to my right, maybe one hundred feet above the tall trees, a group or cluster of three or four very large bright white tubular lights that were packed together (pointy end toward me) and pulsating in unison at a rate that I estimated to be twice per second. As we approached each other I stared intensely to see if I could make out the aerial vehicle that these lights were attached to, unfortunately I was unable to identify anything but the lights. My cruise control was set on seventy and the light cluster appeared to be traveling toward me at a reasonable speed. When we passed each other I looked in my truck’s side view mirror and was able to detect the object some distance behind me, still pulsating. It is difficult now to say whether the object was traveling in my direction or was stationary. This incident occurred not far from Bangor International Airport (BIA), which is adjacent to a National Guard airbase (Home of the Maniacs). The object made no discernable noise, like a military aircraft does, and was clearly too close to the trees. I’ve lived in this area for thirty-one years and have never once encountered such a thing.