Technical Analysis of D4i Smart Dimmable Power Supply: Unveiling the "Data Brain" Behind Lighting

When discussing the intelligent transformation of modern lighting systems, D4i is always a key topic. This is because it not only enhances the efficiency and comfort of lighting but also achieves significant energy savings and environmental compatibility through intelligent management. It offers users an unprecedented personalized lighting experience.

What is D4i?

D4i is an extension of DALI-2 certification, aimed at supporting intelligent IoT-enabled luminaires. Building on DALI-2 lighting control, D4i adds support for data-related functions, including the collection and analysis of data on lighting assets, energy, and diagnostics.

D4i (DALI for Intra-Luminaire) is an upgraded version of DALI-2, developed by the Digital Illumination Interface Alliance (DiiA) as an open global standard. It is based on the international standard IEC 62386 and is incorporated into the DALI-2 certification program, with mandatory interoperability and data function extensions.

**D4i Functional Upgrades**

- **Data Collection and Analysis:** It supports real-time monitoring of luminaire status (temperature, energy consumption), energy reports (power, energy), and diagnostic data (fault warnings), which are not available in DALI-2.

- **Plug-and-Play and Integration:** It allows sensors and communication modules to be directly integrated into the luminaire without additional wiring, simplifying the architecture of intelligent lighting systems.

- **Auxiliary Power Support:** It mandates a 24V auxiliary power output to support other components within the luminaire.

**D4i Certification Requirements**

D4i-certified products must comply with multiple DiiA specifications, such as:

- Part 251 (Luminaire Information), Part 252 (Energy Reporting), and Part 253 (Diagnostic Data) are mandatory requirements.

- All D4i products are compatible with DALI-2 and can be labeled with dual certification marks.

Suretron D4i Smart Dimmable Power Supply Based on the D4i Protocol

- **Flicker-Free, Smooth Dimming:** Protects eye health with seamless dimming performance.

- **95% High Efficiency:** Significantly reduces energy loss and improves electrical energy utilization.

- **D4i-Certified Driver:** Features real-time energy consumption monitoring and fault diagnosis functions.

- **NFC Smart Programming:** Quick setup of addresses and current parameters.

- **Intelligent Time-Based Dimming:** Automatically adapts to scene requirements to reduce unnecessary lighting energy consumption.

- **IP67 Water and Lightning Protection:** Ensures stable operation in harsh environments.

- **Wide Power Range (100W-1800W):** Covers a broad spectrum of power needs.

- **Full-Scene Adaptation Solutions:** Suitable for professional fields such as outdoor illumination, municipal roads, plant factories, and sports venues.