FOTOCELLULA KY-018 Fotosensor Arduino lichtsensor PC

I had purchased this item as a photo sensor for a clock that I was building. When I completed the project the display was very bright and there was no control of the brightness. Reading other forums I discovered that by reversing the connections of the "S" and the "Ground" connections it would work. I did exactly that and it did work. I am not sure if it was the version of the ESP-32 that I was using or if it is actually a manufacturing error. Because of this doubt, I am giving the product review a 3.