UK How to wire three LED to main with one cable?

[Adrianna]

Hi all,
I am new in this forum and would like to understand how to wire to the main supply x3 of the equipment that I attached as a picture?
I had a normal light and wish to have three of those leds instead.
Is it possible and if so how should I wire it?
Many thanks in advance.
Adrianna

 

[Markyd]

Get a sparky....additions to an existing circuit needs a minor works cert

 

[Petej999]

Get a sparky....additions to an existing circuit needs a minor works cert