The supply to those lights appears to go from the switch box as a normal twin and earth cable.
Somewhere, it changes to that strange twin cable belonging to the old lighting system.
That transition may be in just a junction box, or it may be a transformer. Whatever it is, wherever it is, is where you would disconnect the old system and connect your new led driver to the twin and earth coming from the switch.
Somewhere, it changes to that strange twin cable belonging to the old lighting system.
That transition may be in just a junction box, or it may be a transformer. Whatever it is, wherever it is, is where you would disconnect the old system and connect your new led driver to the twin and earth coming from the switch.