    <SEC-DOCUMENT>0001437749-25-029411-index.html : 20250919
    <SEC-HEADER>0001437749-25-029411.hdr.sgml : 20250919
    <ACCEPTANCE-DATETIME>20250918174513
    ACCESSION NUMBER:		0001437749-25-029411
    CONFORMED SUBMISSION TYPE:	DEFA14A
    PUBLIC DOCUMENT COUNT:		5
    FILED AS OF DATE:		20250919
    DATE AS OF CHANGE:		20250918

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			LSI INDUSTRIES INC
    		CENTRAL INDEX KEY:			0000763532
    		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC LIGHTING & WIRING EQUIPMENT [3640]
    		ORGANIZATION NAME:           	04 Manufacturing
    		EIN:				310888951
    		STATE OF INCORPORATION:			OH
    		FISCAL YEAR END:			0630

    	FILING VALUES:
    		FORM TYPE:		DEFA14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	000-13375
    		FILM NUMBER:		251324481

    	BUSINESS ADDRESS:
    		STREET 1:		10000 ALLIANCE RD
    		STREET 2:		P O BOX 42728
    		CITY:			CINCINNATI
    		STATE:			OH
    		ZIP:			45242
    		BUSINESS PHONE:		5135796411

    	MAIL ADDRESS:
    		STREET 1:		10000 ALLIANCE RD
    		STREET 2:		P O BOX 42728
    		CITY:			CINCINNATI
    		STATE:			OH
    		ZIP:			45242

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	LSI LIGHTING SYSTEMS INC
    		DATE OF NAME CHANGE:	19891121
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEFA14A
    <SEQUENCE>1
    <FILENAME>lyts20250915_defa14a.htm
    <DESCRIPTION>FORM DEFA14A
    <TEXT>
    Document 1 - file: lyts20250915_defa14a.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>image1.jpg
    <TEXT>
    Document 2 - file: image1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>image2.jpg
    <TEXT>
    Document 3 - file: image2.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>image3.jpg
    <TEXT>
    Document 4 - file: image3.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>image4.jpg
    <TEXT>
    Document 5 - file: image4.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>