Whether this lightweight plastic part can, I do not know.
From "Made in China" is nothing to find, but the circuit board inside does not look German craftsmanship :-)!
Negative / Positive:
-two very light function indicator lights, both light once you plug in the adapter. (I got inside the lamp blackened paint, so that the adapter at night illuminate the whole room.
I made pictures of the inner adapter, vll can I upload here .. let's see. Update: are uploaded!
Only 2 stars because the interior does not look really high quality, more like a 1 Euro board from China with a fuse and two small filters it, so by no means something special. From the board inside is a thick ground wire soldered to the connector contact (which is well done). The N and L cable sadly is very much thinner and the connector contacts, it was not soldered, it looks more like it stuck. I have both cables N and L for safety's sake turn-soldered to the connector contacts, on the one hand this is the best and most secure connection and secondly because the N cable was a bit frayed, probably happened in the production.
Conclusion:
In NEM price of 8 euros and about 2 euros cost (and it looks likely at all 10 - 20 adapters from) you can not really expect what quality. I think that a really well-built lightning and surge protection probably would cost more from 100 to 200 euros .. so much would want to spend least .. So the standard is here become. Nuja .. time will tell whether these small board / fuse is inside. When something happens, I naturally reports in detail.