The daylight balance (true colour for the fashion conscious ) under cabinet lights that I have use a sensor to detect movement and join in a chain.
Powered off a wall wart style psu
1mm is sufficient. All circuits now need RCD protection. This is traditionally at the CU. You don’t need a second RCD locally if that is what you mean.
Diagram shows one way switching for the one light, but I'm intending on extending the circuit from the first junction box and wiring it all up in exactly the same way for the second cupboard light and switch.
Look ok?
Given the wattage and type of bulb (LED) is this still a fire risk if left on accidentally?
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