Floodlight Cam internal wiring.

I am concerned about the internal wiring of Floodlight Cam. Can someone please look at this wiring? The brown wire does not go to the terminal block as shown in all connection diagrams and videos. There is a very thin black wire going into the block but looks too small to take mains voltage. Can someone reassure me that it is wired correctly internally and safe to connect to mains? Thanks Phil.