So I have only one and later scored a second LED transformer and no regrets.
The article gets to me "only" 4 stars because it has three cons:
1: I find it very very big (just fits through the opening spot), there are smaller transformers and luster terminal connections are somewhat fummlig and not make the most stable impression.
2: The delay with which one can live is just a bit annoying if you have connected several systems in a rows / Paraellschaltung in a hallway.
3: I am a radio operator and the transformers have on the shortwave 10m a beautiful interference. However, other transformers which I have already tried, not only this!
