TECHNICAL NOTE13 MIN · 05 MAY 2026
DALI-2 vs 0-10V vs Phase: choosing the control backbone for luxury homes
S
Siddharth V.
Lead Systems Engineer
Why addressing individual drivers over two-wire digital bus prevents costly rewiring when interior layouts change.
In a luxury villa with over 300 lighting circuits, hardwiring every fixture to physical switch channels creates massive conduit bundles and eliminates post-handover flexibility. Digital addressability changes the paradigm.
The Power of Software-Defined Lighting Zones
With DALI-2, all luminaires share an unpolarized two-wire control bus. If a homeowner decides to regroup their reading chair downlight with the side table lamp instead of the main ceiling group, it is done in software in 10 seconds without touching a wire.
Key Engineering Takeaways
- DALI-2 enables individual driver addressing, diagnostic feedback, and logarithmic dimming.
- Reduces copper cabling runs and switch-cabinet footprint by up to 60%.