security light cavity wall cable best practice

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    Replacing a PIR floodlight - best practice

    I want to replace a faulty conventional PIR floodlight with a new 20W LED version. The current install uses approx 2.5-3mtrs of T&E white PVC which routes from a FCU in the kitchen along and up the kitchen wall in plastic mini trunking. It then exits above the kitchen back door through a hole...