Orange Flare/Pulsating Light. Vertical & Horizontal.

I was driving on Rd 60 from Vero Beach to Central Florida when at approximately between 9:55-10:07 pm, I got a glimpse of what appeared as a bright light that pulsated from the center to its edges in what I could perceive on a lateral axis. The light was very bright and it lasted a few seconds. This occurred in the middle of a dark and empty field (near/a few miles) before reaching the FPL Fort Drum Solar Energy Center.
I felt confused as I tried to understand what I was looking at. At first, I thought the event was probably a general-aviation aircraft turning its landing lights on. I was mesmerized and proceeded to lower the volume of the audiobook I was listening to identify any possible sounds, lights, or clues to give meaning to what I had witnessed. My mind raced and quickly believed it was probably a flare or a glare, but at that instant, it pulsated again.
The second sight can be described as a strong and bright flare that pulsated from the middle towards the outside while making an angled upward motion; I could see it to my left, the same as the first sight. It also appears to be pulsating on its axis.
I reduced my car’s speed and tried to grab my phone to record a video. Unsuccessfully to identify another sight of the “light,” a few minutes after the fact, I decided to proceeded to take a screen capture of my GPS screen in order to identify the area of the sighting.
I’m not sure if this is an important contribution. I’ve looked up how to report my experience and came across the FAA page providing information which directed me to this site.