I have the power supply through two different providers based (both carried out the delivery on Amazon) In the package were two optically different power supplies. The first was similar to the original or the Amazon Figure very. Unfortunately it was defective (LED is not illuminated) and the laptop lies not turn on. The second power supply was visually different. Therefore, I have 5 photos posted. This power supply worked. It also lights up at the plug end of blue (see also my own uploaded photos) To what extent this power supply an original Dell is I can not judge.
I had three days in advance (allegedly also original) ordered me this power supply but in this the replica was visually clearly obvious. In this article, I also have two other images uploaded.