After one day of use, one bulb burned out (specifically the green one), which I consider unacceptable for such a short period of use, unless it was a display model, which I find very likely. For this reason, I gave it two stars in my review! Overall, it is relatively nice, and the two reasons I chose it are because it works without music and it also operates with electricity in addition to batteries if you purchase a transformer that is not included in the package!