We have some ‘smart lights’ installed in our house with various timers set up. When we first set them up, we found that they occasionally got mixed up and would be on when we would want them off. I had thought we had bottomed out all the bugs months ago now.

However I woke up this morning at around 05:30, before any of the lights should be on, and noticed that there was lots of light in the hallway. Irritated that the living room Lights must have turned on for some reason, I tried to ignore it until my alarm went off. It was only when I actually got up that I found out the source of the problem.

The sun had risen and was shining in through the bathroom window. I suppose that was the original automated light system.