Need Help with Light Switch Change

[MDJ]

Hello,

I need some help changing a straight forward light switch in a UK new build house. I have no experience or knowledge of electrics what so ever. I know there's live, neutral and earth/ground and that's it.

With that said, please explain anything in most basic baby English so I can understand...

I have a light on the 2nd floor in master bedroom. It can be operated by a single switch in the bedroom or by a switch on 1st floor landing (this is a double switch - one switch for master bedroom and separate switch/rocker used for the landing light).

So the switch I want to change is the one in the actual bedroom. I've took it off the wall and behind I can see there's following connections:
Top: Com // 1 way
Bottom: Loop // 2 way

My new switch is 1 gang 2 way by LAP from Screwfix and it only has Com, L1 and L2. I've looked everywhere and cannot find anything about the Loop slot. I've attached some pictures.

How can I replace this safely without causing fire or electrocuting someone? (Yes I know that I need to switch the power supply off before doing anything)

Any advice is welcome although I'm not looking for "leave it and contact electrician". I'd rather just return the switch and keep the current one than spend lots of money on this. View attachment 44362 View attachment 44362 View attachment 44363 View attachment 44362 View attachment 44363 View attachment 44364 View attachment 44365 View attachment 44366 View attachment 44367

 

[Marvo]

Light switching wiring can be surprisingly complicated because there's numerous different ways any given lighting system can be wired. Colours of light switch wiring often don't follow the usual standards of Red=live and Black=neutral which makes it difficult and possibly dangerous for DIY'ers without test equipment and knowledge of the various wiring schemes.

I'm going to have to close this thead as it falls short of our 'step by step guide' rule.

 

[Marvo]

View attachment 44378

Looking at the excessive wear at the back of your left heel I think you might have a issue with poor posture.