+ Bending neck for clear direction
+ Clamp
But after some time
Broke a part of the terminal from (~ 2010), but still held at the place where they should. At first I thought that the rather strong spring may be too strong for the plastic. But was also the switch fragile (2013) and lost contact and finally broke inside. After I had dismantled the switch could clearly recognize the cheap, unsuitable plastic has been used and now apparently the plasticizers are volatilized.
Switch defective
Broken cleat
Unfortunately, this lamp stops, if any, the warranty period by.