Useful articles with small flaw ...

This lamp is really "profitable" - in any case, I feel more alert when I (as in winter more often the case) sit at my desk and turn on this lamp because it's still dark outside or even. The mood also improved, because the slightly depressive "winter mood" disappears.

In any case, I would recommend them for residential areas like living room or bedroom if you want to make it there, for example, by the fireplace.

A small flaw I have to mention in addition: My lamp (possibly a single case) "flash" occasionally briefly when the power goes off, but the plug can be in the socket, ie the tube is bright for a split second why is a computer. recommended socket to take power entirely from the device.

Update: I returned the lamp, as it now but gave up the ghost due to loose contact. I promptly received a new lamp. This works perfectly. It's really amazing how active and awake it keeps me, even though I actually already have to be tired. I feel my state of mind as much clearer.