This was purchased to replace the batteries in a ceiling light just before moving out of my previous residence. Purchased around the winter of 2023-2024. Used for about one month. There are no instructions or warranty. The remote control batteries are included, but the remaining charge is unknown. The outer box is damaged (see photo 8). I don't have a suitable-sized cardboard box, so I will ship the main unit in its original outer box wrapped in air cap (as shown in photos 9 and 10).