Negatives:
A Lunartec is in the stairwell in a wall lamp socket, which is not optimal functionality here,
had to do this, remove the glass screen and the original version out turn (Caution Danger of socket fracture and electric shock of the original lamp socket) (to which was an optimal vertical alignment of the original wall lamp socket is not possible) showed that the then the pin of the Lunartec version "somewhat" down ,
If you now comes from the lower side of the stairway, they turn on until one when standing almost under it, if you come from the upper side of the stairway they turned optimally.
Therefore for sconces and horizontal versions, like sockets hanging freely in space but not on a wall, rather unsuitable.
Negatives:
The setting for the burn time is troublesome for a while has lasted until this has set in about 5 minutes, re-adjust repeatedly, sometimes in direction a lot and then back towards the little, because no precise catch or print, but only an arrow with -. u + sign it is.
Conclusion:
5 stars for free in space vertically hanging versions.
1 star deduction because rather unsuitable for other types of lamps.
1 star deduction for unkomoten settings.