Junction box - 3 core and 2 core

[Paulino999]

Hi all.

I have recently purchased a ring security camera and wanted to connect it via a junction box to the mains.
However the mains supply is a 3 core wire (black, brown, grey and exposed wire) presuming that’s the earth.
Where the security camera has a 2 core wire (brown, blue and earth).

What is the correct colour connection for the security light to receive constant supply?
I will then reconnect the mains to continue to run to the light it powers.
Thanks

 

[bernardgreen]

What is the correct colour connection for the security light to receive constant supply?

You will need to look at the other end of the cable to see where each of the three conductors are connected.