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Trademarks and Logos

Trademark list and usage


The following Logos and Wordmarks are Trademarks in various countries in the exclusive use of Digital Illumination Interface Alliance.


DALI version-1 logo


DALI-2 logo


D4i logo


DiiA logo

Trademark Usage

The DALI, DALI-2, D4i and DiiA Trademarks (logos and wordmarks) are for use by DiiA members ONLY.

DiiA membership allows use of these Trademarks in accordance with the DiiA Trademark Guidelines (available to members only).


OEM manufacturing

A product shall not bear any of the Trademarks listed above unless the company name shown on the product is that of a DiiA member.

In other words: Company A manufactures products on an OEM basis for Company B. Products are sold with the Company B brand. Company B must be a DiiA member to be allowed to use the Trademarks listed above. 


Word Trademarks

The following Word Trademarks are reserved for use by DiiA members only.

The Trademark applies regardless of font, style or other properties.

DALI Word Trademark


DALI-2 Word Trademark


DiiA Word Trademark


D4i Word Trademark



Logo Trademarks

The DALI, DALI-2 and D4i logos may be used by DiiA members (including affiliated brands) ONLY.

DALI-2 logo trademark

The DALI-2 logo is used by DiiA members (Regular or Associate) on their certified products ONLY. 

Other use of the DALI-2 logo is not allowed.

► Certified DALI-2 products must be listed in the online Product Database


DALI version-1 logo trademark

The DALI version-1 logo can be used by DiiA members (Regular or Associate) to indicate control gear that are tested for compliance with version 1 of the DALI standard.

► All products showing the DALI version-1 logo must be registered with DiiA and listed in the online Product Database

► DiiA members can also use the DALI version-1 logo to indicate their membership of DiiA.


Logo usage on luminaires

Luminaire makers who are listed as Community members of DiiA, or who are Regular or Associate members, can use the DALI logos on their luminaires. The DALI-2 logo can be used on luminaires containing at least one DALI-2 certified device.

>> See DALI for luminaire makers


D4i logo trademark

The D4i logo may be used by DiiA members on DALI-2 certified products that also meet the specific requirements for D4i certification. 

>> More information on D4i


DiiA logo trademark

The DiiA logo may be used by companies to indicate their membership of DiiA.