Unfortunately, only 2 stars possible

The luminous efficacy of the lamp is fine, installation is easy and the delivery was as always punctual. But there is a massive problem that does not unfortunately appears in other reviews.
The lamp is used with us as recessed lamp in the kitchen. Unfortunately, this interferes massively FM reception of our kitchen radio. The reason I suspect in a cheap transformer. I have contacted the manufacturer on this issue (Made in Germany). Answer:
"Of course, we can assure you that our products meet all relevant tests of electromagnetic requirements - but unfortunately it can in fact we happen in your case, that in the immediate vicinity of the lights to Radio receivers terrestrial reception, it may be susceptible to the only alternative. is the distance between light and radio to increase. If this is not possible, you have to switch to a different lighting system. "
It would have been good if we had known this in advance! In my opinion this is not a problem of light, but many LED lights.