Triangle shaped aircraft with swirling lights

At approximately 12:22pm in Rahway NJ, I was sitting at my desk in front of my bedroom window. The weather was pretty clear but with a few clouds. Something had caught my eye in the sky. So I look up. Because of the formation, I first thought it was birds flying in a triangle. But the way it was traveling made me stand up to take a closer look. I could see this triangular shaped craft moving slowly. There were three white lights up under that was kind of large that was swirling. It seemed as if it was reflecting which is how I noticed it the most. It began to speed up and it descended pretty fast up into the clouds going west. I was in utter disbelief and could not comprehend what I saw. This craft was definitely not of this world.