Basic wiring diagram

[Flakes]

Just a really quick question about basic wiring. See photo below. My question is if you put the "in" black and red wire into the place of the "out" black and red wire, will there be a problem?

Top picture is one I found on internet and the one below is one I edited : https://pasteboard.co/Jt0MbdI.png

 

[Flakes]

Also second quick question; the lamp neutral and live wire has to be looped (or does it?) around those plastic tags, and so for me I had to push them to fit in place a bit and so I noticed it sort of scratched the sheathing. Is this a problem?
https://pasteboard.co/Jt0Q2k7.png

 

[Taylortwocities]

In and out are interchangeable. It makes no difference, how could it?
The cable you cannot swop around is the switch cable.

Yes you must loop the wires round the hooks. They stop the weight of the lamp pulling the wires out of the screw terminals. If they too short, trim the sheathing back a TINY bit.

 

[AndyPRK]

If you have skagged it, I wouldn't worry too much. (as long as its not close to another wire)

 

[Flakes]

Okay thanks all
No I won't get the switch cable wrong and I'll double check with a multimeter to confirm.
The only reason the lamp wires are too big for the hooks is because I thought id just swap over the old lamp with a new lamp. So what I mean is I bought a pendant (6") and unscrewed it from the terminal and then rescrewed the Neutral and live wire into the pre-existing ceiling rose. This is allowed right ?

 

[Flakes]

Anyway so what i thought I would trim a tiny bit of the hook off, so that it would not be such a tight fit