-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 Udreva1uDtyddaUspy8xecOLyghuxG+4aEhAikNJe2W1cwEr38x9NEySMWlxLCFB
 En7ikkM3Mm9kDYpCyGXhlQ==

<SEC-DOCUMENT>0000866970-10-000003.txt : 20100405
<SEC-HEADER>0000866970-10-000003.hdr.sgml : 20100405
<ACCEPTANCE-DATETIME>20100405172250
ACCESSION NUMBER:		0000866970-10-000003
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20100322
FILED AS OF DATE:		20100405
DATE AS OF CHANGE:		20100405

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Cohen Jonathan Todd
		CENTRAL INDEX KEY:			0001383566

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-20354
		FILM NUMBER:		10732266

	MAIL ADDRESS:	
		STREET 1:		400 CHESTER FIELD PKWY
		CITY:			MALVERN
		STATE:			PA
		ZIP:			19355

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			LIGHTING SCIENCE GROUP CORP
		CENTRAL INDEX KEY:			0000866970
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC LIGHTING & WIRING EQUIPMENT [3640]
		IRS NUMBER:				232596710
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1227 SOUTH PATRICK DRIVE
		STREET 2:		BUILDING 2A
		CITY:			SATELLITE BEACH
		STATE:			FL
		ZIP:			32937
		BUSINESS PHONE:		321-779-5520

	MAIL ADDRESS:	
		STREET 1:		1227 SOUTH PATRICK DRIVE
		STREET 2:		BUILDING 2A
		CITY:			SATELLITE BEACH
		STATE:			FL
		ZIP:			32937

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	PHOENIX GROUP CORP
		DATE OF NAME CHANGE:	20001130

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	PHOENIX HEATHCARE CORP
		DATE OF NAME CHANGE:	19990519

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	IATROS HEALTH NETWORK INC
		DATE OF NAME CHANGE:	19941221
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2010-03-22</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000866970</issuerCik>
        <issuerName>LIGHTING SCIENCE GROUP CORP</issuerName>
        <issuerTradingSymbol>LSCG.PK</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001383566</rptOwnerCik>
            <rptOwnerName>Cohen Jonathan Todd</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1227 SOUTH PATRICK DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2>BUILDING 2A</rptOwnerStreet2>
            <rptOwnerCity>SATELLITE BEACH</rptOwnerCity>
            <rptOwnerState>FL</rptOwnerState>
            <rptOwnerZipCode>32937</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>VP &amp; CHIEF ACCOUNTING OFFICER</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Employee Stock Option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>1</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2010-03-22</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>100000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2020-03-22</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Commonn Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>100000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>100000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">So long as the Reporting Person remains employed with the Company, options to purchase 25,000 shares vest and become exercisable on each of March 22, 2011, March 22, 2012, March 22, 2013 and March 22, 2014, respectively.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Jonathan Cohen</signatureName>
        <signatureDate>2010-04-05</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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