What to decide before wiring a smart lighting system

Smart lighting is mostly a wiring decision made before any smart device is installed. Once the ceilings are closed, the options narrow quickly to what the cable already supports.

Start with control points

Every switch position, sensor location and keypad becomes a cable run. Drawing the control plan together with the electrical plan, rather than after it, avoids most retrofit work later.

Write the scene list early

Scene design should be written before commissioning: which circuits dim together, which stay fixed, and what happens at night or when the house is empty. A scene list of eight to twelve entries covers most homes without becoming unusable.

Driver placement is not an afterthought

Drivers need accessible locations, ventilation and enough space for the cable loop. A ceiling void that fits the fixture often does not fit the driver.

Protocol choice follows the building

DALI suits addressable commercial floors, TRIAC and 0–10V suit simple retrofit dimming, and wireless mesh suits residential refurbishment where new cable runs are impractical. Decide this before luminaires are specified, not after.