Great colors game with just three LED's - (red, green, blue), which is broken by a quiet rotating prism coupling into many small effective rotating lights and variable forms the dome rotates amazingly quite quietly humming and disturbs nicht.Man she hears actually just quiet whir when it is very, very low or no music at one hat.Leider speaks the built-in music control only at quite loud music, with powerful bass really an.Das then manifests itself in a short and ausschaltinterwall, in which the light completely dark times briefly and switched back wird.Reagiert but not really permanently after Basstackt, but only now and then with eventual Spitzenpegel.Der effect is very good if you screwed the lamp in a downward or above existing Dekenbeläuchtung or like me in an old infrared lamp and a white wall or corner richtet.Der beam angle is estimated 180 ° and should jeh after installation depth, as amended, to be considered in the lamp, otherwise half the effect in the lampshade hangs: to o) Durability I can not say much, because I have them until you are 3 days a) = 2h in Betrieb.Auf the package but is about 8,000 h.Das means about as long as a good Sparlampe.Bis now I'm fully zufrieden.Auch when the music control is not quite as sensitive, but the price is right, it gbt the full 5 stars from me and 'ne purchase recommendation!