Smart Lighting
Connected, code-compliant lighting for streets and buildings.
What Is D4i? The Intra-Luminaire DALI Standard
EN 1838 and UL 924: Emergency Lighting Compliance
LED Driver Selection Guide (Master)
Related products & solutions
Smart Street Lighting
DALI-2 / NEMA / Zhaga
Smart LED Driver
Connected drivers
Emergency LED Driver
Code-compliant egress
Applications
Street & area
IP67 DALI drivers and NEMA nodes enable remote dimming per pole.
Buildings
DALI-2/D4i drives occupancy and daylight harvesting.
Stadiums
Per-luminaire addressing for zone scenes and energy logging.
Retrofit
Emergency self-test drivers add code compliance without rewiring.
DALI-2 vs D4i vs 0-10V for Smart Lighting
Control bus choice sets how much data and addressing you get per luminaire.
| Addressing | Yes | Yes | No |
|---|---|---|---|
| Sensor data | Limited | Rich | None |
| Cost | Mid | Higher | Low |
| Best for | Control | Data + control | Simple dim |
Use D4i for data-rich smart lighting, DALI-2 for addressed control, 0-10V for simple dimming.
Frequently Asked Questions
What is a D4i node?
A certified DALI-2 device (driver, sensor or power supply) carrying standardized data on the bus.
Can street lights report faults?
Yes. D4i/NEMA nodes report energy and faults per pole to your CMS.
Are drivers weatherproof?
IP67 outdoor drivers survive rain and dust for street and area lighting.
UL924 for outdoor emergency?
Yes. Self-test emergency drivers keep egress lit on mains loss, indoor or sheltered.
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