Now to the charger:
For the price of course you can not expect miracles, but dangerous, it should not be what it is in this case yet. The contacts are designed safe from contact in any way, and really fit, it is also not, as already noted other reviewers have. The device itself has no seal on the box is a by TÜV Süd is guaranteed but out wrongly.
I needed the lamp at short notice and therefore I have taken into account, but I'm going to buy one ordinary charger in the near future.