Not Seen This Before

[EFLImpudence]

Beyond that, if a Class II item has touchable metal parts (which don't need to be earthed because it is Class II), then to earth them could be regarded as simply being 'additional protection against electric shock' (even though, as per my previous sentence, that is partially balanced/negated by a small increase in risk due to it being 'unnecessarily earthed'.

There you go. Not earthing removes that small increased risk which is considered the better option.

 

[JohnW2]

There you go. Not earthing removes that small increased risk which is considered the better option.

Maybe (possibly) so considered by you and I, but no "must not" about it as far as any regulations of which I'm aware are concerned.

I say "(possibly)" because I'm far from convinced that the (tiny) risk resulting from creation of 'unnecessarily earthed touchable metal' (quite often on a ceiling) necessarily outweighs the (again tiny) increase in protection against electric shock provided by earthing metal parts surrounding a Class II item.

 

[securespark]

I'd leave the earth unconnected IMO.
Where was this brought from?

Sorry, missed your post

They were bought from a reputable UK dealer. Integral Evo fire rated downlighters.