-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 DzR7ZuZnbvrF2zpwRiLmT3sTZuc5BShY4585IrZQPG1E6d3p5dDtO0MyfExcdVNd
 uK3Hb+N5AeQjnDeh6qI7Vg==

<SEC-DOCUMENT>0001140361-09-016933.txt : 20090724
<SEC-HEADER>0001140361-09-016933.hdr.sgml : 20090724
<ACCEPTANCE-DATETIME>20090724122646
ACCESSION NUMBER:		0001140361-09-016933
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20090722
FILED AS OF DATE:		20090724
DATE AS OF CHANGE:		20090724

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Feeney David T
		CENTRAL INDEX KEY:			0001468829

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-13375
		FILM NUMBER:		09961516

	MAIL ADDRESS:	
		STREET 1:		2727 SCIOTO PARKWAY
		CITY:			COLUMBUS
		STATE:			OH
		ZIP:			43221

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Miller Craig A
		CENTRAL INDEX KEY:			0001468830

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-13375
		FILM NUMBER:		09961515

	MAIL ADDRESS:	
		STREET 1:		2727 SCIOTO PARKWAY
		CITY:			COLUMBUS
		STATE:			OH
		ZIP:			43221

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Kelly Kevin A
		CENTRAL INDEX KEY:			0001468988

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-13375
		FILM NUMBER:		09961514

	MAIL ADDRESS:	
		STREET 1:		2727 SCIOTO PARKWAY
		CITY:			COLUMBUS
		STATE:			OH
		ZIP:			43221

ISSUER:		

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

	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>4
<SEQUENCE>1
<FILENAME>doc1.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2009-07-22</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000763532</issuerCik>
        <issuerName>LSI INDUSTRIES INC</issuerName>
        <issuerTradingSymbol>LYTS</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001468830</rptOwnerCik>
            <rptOwnerName>Miller Craig A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2727 SCIOTO PARKWAY</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>COLUMBUS</rptOwnerCity>
            <rptOwnerState>OH</rptOwnerState>
            <rptOwnerZipCode>43221</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001468829</rptOwnerCik>
            <rptOwnerName>Feeney David T</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2727 SCIOTO PARKWAY</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>COLUMBUS</rptOwnerCity>
            <rptOwnerState>OH</rptOwnerState>
            <rptOwnerZipCode>43221</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001468988</rptOwnerCik>
            <rptOwnerName>Kelly Kevin A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2727 SCIOTO PARKWAY</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>COLUMBUS</rptOwnerCity>
            <rptOwnerState>OH</rptOwnerState>
            <rptOwnerZipCode>43221</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2009-07-22</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>2469676</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2469676</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                    <footnoteId id="F4"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Option to Buy</value>
                <footnoteId id="F5"/>
                <footnoteId id="F6"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>5.85</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2009-07-22</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>10000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2009-07-22</value>
            </exerciseDate>
            <expirationDate>
                <value>2019-07-22</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>10000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>10000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Option to Buy</value>
                <footnoteId id="F5"/>
                <footnoteId id="F7"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>5.85</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2009-07-22</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>10000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2009-07-22</value>
            </exerciseDate>
            <expirationDate>
                <value>2019-07-22</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>10000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>10000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Option to Buy</value>
                <footnoteId id="F5"/>
                <footnoteId id="F8"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>5.85</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2009-07-22</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>10000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2009-07-22</value>
            </exerciseDate>
            <expirationDate>
                <value>2019-07-22</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>10000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>10000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Received as partial consideration for substantially all of the assets of ADL Technology Inc. (?Technology?) and ADL Engineering Inc. (?Engineering?) pursuant to a Purchase and Sale Agreement dated as of July 22, 2009 (the ?Agreement?) by and among the Issuer, LSI Acquisition Inc. (?Acquisition?), Technology, Engineering and each of the reporting persons. The closing price of the Issuer's common stock on the closing date of the transactions contemplated by the Agreement was $5.85 per share.</footnote>
        <footnote id="F2">727,458 shares of the Issuer will be issued in the name of Technology and distributed to the reporting persons subsequent to the closing with respect to their percentage interest, 370,156 shares of the Issuer will be issued in the name of Engineering and distributed to the reporting persons subsequent to the closing with respect to their percentage interest, 1,372,062 shares of the Issuer will be held in escrow pursuant to the terms of an Escrow Agreement dated as of July 22, 2009 by and among Acquisition, each of the reporting persons and U.S. Bank, N.A. (the ?Escrow Agreement?), under which the reporting persons will have the authority to direct the escrow agent thereunder to sell all or a portion of the escrowed shares.</footnote>
        <footnote id="F3">All shares held in escrow pursuant to the Escrow Agreement are subject to forfeiture under the terms of the Escrow Agreement for a period following the closing date in order to satisfy claims arising as a result of breaches of representations and warranties or covenants under the Agreement by Technology, Engineering or the reporting persons. Following the expiration of an initial eighteen month period under the Escrow Agreement, one half of the escrowed shares and any proceeds from sales thereof will be distributed to the reporting persons and following the termination of the escrow period under the Escrow Agreement, any remaining shares and any proceeds from sales thereof will be distributed to the reporting persons.</footnote>
        <footnote id="F4">Technology and Engineering, of which the reporting persons beneficially own 100%, acquired these shares pursuant to the Agreement and distributed them to the reporting persons. Some of the shares shall be held in escrow, as provided in footnote 2 above. Each of the reporting persons disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or any other purpose.</footnote>
        <footnote id="F5">Non-qualified stock options granted pursuant to the Company's 2003 Equity Compensation Plan. The options are exercisable at a rate of 25% per year of the aggregate grant, beginning on the 1st anniversary of the grant date.</footnote>
        <footnote id="F6">These options are owned directly by Craig A. Miller.</footnote>
        <footnote id="F7">These options are owned directly by Kevin A. Kelly.</footnote>
        <footnote id="F8">These options are owned directly by David T. Feeney.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/Craig A. Miller</signatureName>
        <signatureDate>2009-07-24</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/Craig A. Miller, as Attorney-in-Fact for David T. Feeney</signatureName>
        <signatureDate>2009-07-24</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/Craig A. Miller, as Attorney-in-Fact for Kevin A. Kelly</signatureName>
        <signatureDate>2009-07-24</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----