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DiiA specifications

DiiA specifications

DiiA writes new specifications that define additional features and functions for the DALI-2 protocol.

DiiA specifications are published on the DiiA website. >> Download page

DiiA specifications are aligned with the IEC 62386 standard. DiiA intends to transfer its specifications to IEC, for publication as new Parts of IEC 62386.

DiiA uses its specifications to create DALI-2 Test Procedures, which enable DALI-2 certification. DiiA also creates DALI-2 Test Procedures based on different Parts of IEC 62386.


D4i specifications

The D4i specifications define power-supply requirements and smart data capabilities, and are primarily focused on intra-luminaire DALI applications.  >> More about D4i

DiiA is creating DALI-2 test procedures for the D4i specifications. D4i certification of LED drivers started in November 2019, and control devices will be added later.

DiiA Specification name

Published by DiiA?

>> Download

Certification available?
DALI Part 150 – AUX Power Supply 
DALI Part 250 – Integrated Bus Power Supply
DALI Part 251 – Memory Bank 1 Extension (luminaire data)
DALI Part 252 – Energy Reporting
DALI Part 253 – Diagnostics & Maintenance
DALI Part 351 – Luminaire-mounted Control Devices – NEW  
  • Part 2xx specifications are feature extensions for DALI-2 control gear (e.g. LED drivers)
  • Part 3xx specifications are feature extensions for DALI-2 control devices (e.g. sensors or application controllers)


Other specifications

DiiA Specification name Status
DALI Part 306 – General-purpose Sensors