In article ,
says...
All very good but the Wago connectors should be enclosed in a plastic box.


Or otherwise suitably enclosed...

Notes
Connectors should be used within a suitable enclosure.
but can be installed in a cavity when installing backless equipment,
such as a domestic style luminaire, ( it is possible for the enclosure
to be formed or completed by the fitting or suitable material considered
to be non-combustible)

www.tlc-
direct.co.uk/Main_Index/Boxes_and_Enclosures_Index/Wago/index.html
--
Skipweasel - never knowingly understood.