Can only say, once again, fast delivery by Amazon.Artikel was there after 28 hours, thank you! To The Product! The UV sterilizer is well packaged, you should only watch, lamp inside the device is still with film So wrapped Unscrew previously and entfernen.Das device itself makes a stable impression and is ok from a processing perspective! I use the UV sterilizer for my 400L aquarium, connected and ready just before the Eheim filter. The eizige disadvantage and therefore only 4 stars are given to large conventional Anschlüsse.Man Hose not right on it, but if you prepare the hoses at the ends in hot water, goes It recommended all gut.Alles in particular.