-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 O/Jo3bKMGbdfO9fNM32p4G7hwYFFYhF4z3/XcLFoPdrpDitmRL9lbW7XzS6sAWyw
 TOWMAlYQWaK0j9AXSqn4FQ==

<SEC-DOCUMENT>0000866970-08-000001.txt : 20080103
<SEC-HEADER>0000866970-08-000001.hdr.sgml : 20080103
<ACCEPTANCE-DATETIME>20080103154203
ACCESSION NUMBER:		0000866970-08-000001
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20071231
FILED AS OF DATE:		20080103
DATE AS OF CHANGE:		20080103

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:		2100 MCKINNEY AVENUE
		STREET 2:		SUITE 1555
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75201
		BUSINESS PHONE:		2143823630

	MAIL ADDRESS:	
		STREET 1:		2100 MCKINNEY AVENUE
		STREET 2:		SUITE 1555
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75201

	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

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			HARKLEROAD DONALD R
		CENTRAL INDEX KEY:			0001254472

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-20354
		FILM NUMBER:		08506245

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		678-533-9000

	MAIL ADDRESS:	
		STREET 1:		6801 GOVERNORS LAKE PARKWAY
		STREET 2:		SUITE 100
		CITY:			NORCROSS
		STATE:			GA
		ZIP:			30071
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2007-12-31</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000866970</issuerCik>
        <issuerName>LIGHTING SCIENCE GROUP CORP</issuerName>
        <issuerTradingSymbol>LSGP</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001254472</rptOwnerCik>
            <rptOwnerName>HARKLEROAD DONALD R</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>6801 GOVERNORS LAKE PARKWAY</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 100</rptOwnerStreet2>
            <rptOwnerCity>NORCROSS</rptOwnerCity>
            <rptOwnerState>GA</rptOwnerState>
            <rptOwnerZipCode>30071</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2007-12-31</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>27174</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.46</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2414765</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>The Bristol Company</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Price is based upon the average closing price of the stock for the quarter ending September 30, 2007 as payment in liue of cash for directors fees.</footnote>
        <footnote id="F2">Includes (i) 100,000 shares issuable by the issuer to The Bristol Company (&quot;Bristol&quot;) pursuant to the conversion of 6% Convertible Preferred Stock of the issuer; (ii) 46,876 shares issuable pursuant to the exercise of warrants at a price of $0.30 per share; (iii) 150,000 shares issuable pursuant to the exercise of options at $0.87 per share (all of which is vested); (iv) 50,000 shares issuable pursuant to the exercise of options at $0.53 per share (all of which is vested); (v) 800,000 shares issuable pursuant to the exercise of options at $0.32 per share (two-thirds of which are vested and one-third of which will vest on 2/20/08); and (vi) 125,000 shares issuable to Bristol pursuant to the exercise of options at a price of $0.54 per share (one-fourth of which are vested and one-fourth of which will vest on each anniversary date until 8/2/10.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Donald R. Harkleroad</signatureName>
        <signatureDate>2007-12-31</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----