Extending power cable for light

[seanuk]

I recently purchased this motion sensored security light for outdoors.

The light comes with some power cable attached (with no plug on the end), and I would like to extend this cable and then put a 5 amp wall plug on the end to plug it in indoors.

The cable that is already attached to the light is the only cable that will be outdoors, so the cable I add as well as the terminal that I plan to get will all be indoors and so don't need to be weather-proof or anything like that.

My only question is, is this the terminal that I would need to do what I'm asking, and then simply attach the end of the already included cable in one end, with my new extended cable going in the other?

 

[EFLImpudence]

That connector only has provision for two wires, you will need one with three.

 

[AndyPRK]

Some Chinese thing off eBay?

 

[seanuk]

Could anyone link me to one that would be best? I'm worried I'll end up getting the wrong one

 

[Taylortwocities]

Something like this

CLICK ME

 

[seanuk]

Something like this

CLICK ME

Thanks for the link

I believe it is this one? There isn't a Screwfix very close to me.

I also found this one which seems very similar, only not screwless.
Would a 'screwed' one be better or?

 

[Taylortwocities]

That’ll work.
You should be able to get a 3-terminal JB in just about every DIY retailer in the UK.
Doesn’t matter, but junction must be accessible if screwed terminals.