After trying this myself and reading the replies, I feel like the best way to handle this is to tear apart the plastic push-in connector and replace it with a proper multi-use WAGO connector. This is not an easy thing to do, but then you end up with completely intact wires which is what you want, and you don't need to shorten the wires by cutting them off. I am going to need to do this 8 times for 4 potlights... very annoying. Honestly, I don't understand why they can't spend 10 cents extra or whatever and include proper WAGO-stype connectors. Maybe it's because they are patented and therefore expensive to include. Who knows. RS supply a wide range of high quality components. They include heavy duty industrial connectors, power connectors, modular connectors, electrical connectors, electronic and data connectors. They are divided into the following categories: