I thought I was back aufgesessen absolutely inferior China Quality and wrote the dealer to asking me would you prefer to send a classical chain. The lights themselves liked namely very good. They are very bright (with many LED chains a problem) and the mounting brackets are quite stable and do not break immediately, as I had experienced in the last year.
In response, I received the offer to replace the defective lamps and the distribution box. Unfortunately, the trader no classic chain with said lamps has on offer. Not very hopeful I spoke about the offer.
The replacement cartridges were delivered quickly (which shortly before Christmas is very important) and I swapped out the candles and the box from. In fact, both components were defective. After replacing everything ran smoothly and convinced me entirely. Now therefore I can certainly issue a buy recommendation due to the reliability and now manufactured the good and fast service.
How does the chain in repeated use and at multiple mating cycles, remains to be seen. We will see next December.