Unfortunately, I now had to send the second set, a third attempt, I no longer do (than ever to package returns and to bring to the post office, I have better things to do) me at:
After a few weeks and some rain water is available in spots, one is then also failed, the other flickered. After pulling out the spot-connector water runs out of the solar module, the metal parts are visible here heavily corroded. On shaking the solar module can hear water sloshing around inside and water seeps out of the cracks of the solar module.
Hoping to have caught a Monday device, I have the whole thing be returned and exchanged for a new set. Unfortunately, after just three weeks and some rain again the whole game from the beginning.
I would gladly spend a few more euros, if the product for its intended use outdoors and so even in the rain would be suitable, because the rest of fits, too bad!
If anyone (even without like solar and for 230V connection) has a proposal for a higher quality solution, I would be very happy!