3x1.5 or 5x1.5 NYM in the roof box for LED spots?

GU10 sockets are usually delivered with cables.

Seriously now? You're hanging your lights on bare sockets?

Yes, really,

even if the socket is built into a housing or in a lamp, it doesn't look different inside. GU10 comes with a cable.

Do I understand this correctly: Nym -> terminal block -> intermediate cable -> terminal block -> GU10 socket? So if there's enough cable length, what's the point of all that?

The rigid NYM cable was laid up to the roof overhang and then extended with a flexible two-core cable. It looked like a speaker cable with a corresponding cross-section. This cable was easier to bend and connect to the GU10 sockets.

Yeah really, even if the socket is built into a housing or in a lamp, it doesn't look different inside. GU10 comes with a cable.

The end customer does not need to be interested in the internal structure. Cable in clamp, done.

Doesn't matter either. Nevertheless, they are practically always bare versions with cables attached.