There's a block with four terminals. One is earth. One is the red live feed. One has two black wires. One has one black wire.
The earth and the live feed are obvious.
I assume that I ignore the black terminal with two wires and connect the lamp's neutral wire to the terminal with the single black wire?
Is it normal to switch the neutral, rather than the live wire?
Or have I got this totally wrong?
There's only one switch BTW.