Ever since I moved into my house a few years ago this thing blinks either red or yellow at night. I can’t tell what it’s for. It’s connected to some wiring in my attic. Any ideas?

Ever Since I Moved Into My House, This Thing Blinks at Night — What Could It Be?

If you’ve ever noticed a mysterious light blinking somewhere in your home—especially at night—it can be unsettling. One homeowner shared that ever since moving into their house a few years ago, they’ve noticed a small device in the attic that alternates between red and yellow blinks. It’s connected to some wiring, but its purpose is unclear. While it might seem like something out of a mystery story, there are several practical explanations worth considering.