I got these lights for my den and it's a great addition to my room. They have a super strong self sticking back on them, I was able to readjust them without any issues on loosing it's hold. The array of colors are almost magical.  I only have two small complaints. First, it comes without an actual plug. The end is a USB,  so you need an extra plug to operate.  Fortunately I've upgraded most of my receptacles with plates that have the USB plugs in them. Second the main controls of the lights are operated by an app, and you need wifi to connect. This was kind of a pain to get it to connect. There is a basic  
 control on the lights, but it only controls a few functions.  All and all it's still an awesome addition to any room.