What this work covers
Lighting installation routes separate controls to downlights, concealed strips, sensors, fans, and other fixtures, then mounts and tests them against the switch plan. Because every cut touches the finished ceiling, wiring set-out and fixture installation should be inspected as two distinct stages.

When this work is needed
Prepare new wiring when downlight positions or quantities change, or when concealed lighting, sensors, and fans need separate control. If a fixture is replaced at the same point, check its size, power supply, dimming compatibility, and recess depth before assuming the existing wiring can stay unchanged.
Decide before cutting the ceiling
Set the visible lighting pattern and the hidden equipment space together.
- Fixture type, quantity, exact position, and spacing in each room
- Colour temperature, brightness, dimming, and sensor operation
- Lights, fans, and concealed strips controlled by each switch
- Recess depth and conflicts with framing, ducts, pipes, and access panels



