I used it for about 3.5 years and no longer need it due to moving. The color and brightness can be adjusted steplessly. A remote control is also included. If you install the app and connect it, it seems to be controllable with your smartphone, but I never ended up using that feature... There are no particular stains or scratches on the product itself. The back of the remote control shows some signs of use. The outer box was slightly torn by my 0-year-old child while it was sitting in my room, as I had intended to sell it on Mercari. The contents are fine. I will ship it in the product box shown in the photos, wrapped in bubble wrap on top.