Rear Light bulb change / tailgate part

[peter530i]

Hello, can anyone help with instructions how to change to rear light bulb?
It is the section on the actual tailgate. One of the 4 red colored links does not light anymore. Also is there a standart lightbulb or some special part for that?

(tried to used search but no luck)

I would like to update this topic:
the :"LED" strip have to be replaced as a whole lighting unit including the actual light plastic trim
in the mean time the fog light BULB within the same light has gone. any idea how to replace it? how to reach it? is it possible from the inside or I have to remove the whole lighting housing from the car? thanks