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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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<SEC-DOCUMENT>0001181431-10-024364.txt : 20100505
<SEC-HEADER>0001181431-10-024364.hdr.sgml : 20100505
<ACCEPTANCE-DATETIME>20100504195329
ACCESSION NUMBER:		0001181431-10-024364
CONFORMED SUBMISSION TYPE:	D
PUBLIC DOCUMENT COUNT:		1
ITEM INFORMATION:		Rule 506
FILED AS OF DATE:		20100505
DATE AS OF CHANGE:		20100504
EFFECTIVENESS DATE:		20100505

FILER:

	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

	FILING VALUES:
		FORM TYPE:		D
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	021-141525
		FILM NUMBER:		10798919

	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>
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<TYPE>D
<SEQUENCE>1
<FILENAME>primary_doc.xml
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    <submissionType>D</submissionType>

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        <entityName>LIGHTING SCIENCE GROUP CORP</entityName>
        <issuerAddress>
            <street1>1227 South Patrick Drive</street1>
            <street2>Building 2A</street2>
            <city>Satellite Beach</city>
            <stateOrCountry>FL</stateOrCountry>
            <stateOrCountryDescription>FLORIDA</stateOrCountryDescription>
            <zipCode>32937</zipCode>
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        <issuerPhoneNumber>(321) 779-5520</issuerPhoneNumber>
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            <previousName>IATROS HEALTH NETWORK INC</previousName>
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                <firstName>Zachary</firstName>
                <middleName>S.</middleName>
                <lastName>Gibler</lastName>
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                <street1>1227 South Patrick Drive</street1>
                <street2>Building 2A</street2>
                <city>Satellite Beach</city>
                <stateOrCountry>FL</stateOrCountry>
                <stateOrCountryDescription>FLORIDA</stateOrCountryDescription>
                <zipCode>32937</zipCode>
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            <relatedPersonRelationshipList>
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                <firstName>Michael</firstName>
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                <lastName>Kempner</lastName>
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                <street1>1227 South Patrick Drive</street1>
                <street2>Building 2A</street2>
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                <street1>1227 South Patrick Drive</street1>
                <street2>Building 2A</street2>
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                <stateOrCountry>FL</stateOrCountry>
                <stateOrCountryDescription>FLORIDA</stateOrCountryDescription>
                <zipCode>32937</zipCode>
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                <firstName>Richard</firstName>
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                <city>Satellite Beach</city>
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                <zipCode>32937</zipCode>
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                <firstName>Khaled</firstName>
                <lastName>Haram</lastName>
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                <firstName>Jonathan</firstName>
                <middleName>T.</middleName>
                <lastName>Cohen</lastName>
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        <relatedPersonInfo>
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                <firstName>Frederic</firstName>
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    </relatedPersonsList>

    <offeringData>
        <industryGroup>
            <industryGroupType>Other Technology</industryGroupType>
        </industryGroup>
        <issuerSize>
            <revenueRange>Decline to Disclose</revenueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>false</isAmendment>
            </newOrAmendment>
            <dateOfFirstSale>
                <value>2010-04-19</value>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>false</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isEquityType>true</isEquityType>
            <isOptionToAcquireType>true</isOptionToAcquireType>
            <isSecurityToBeAcquiredType>true</isSecurityToBeAcquiredType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
            <clarificationOfResponse></clarificationOfResponse>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>0</minimumInvestmentAccepted>
        <salesCompensationList></salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>174918270</totalOfferingAmount>
            <totalAmountSold>25116726</totalAmountSold>
            <totalRemaining>149801544</totalRemaining>
            <clarificationOfResponse>The Company sold 24,966,924 units to investors at $1.006 per unit, with each unit consisting of one share of Series D preferred stock and that portion of a warrant representing the right to purchase one share of the common stock at $6.00 per share.</clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>10</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>0</dollarAmount>
            </salesCommissions>
            <findersFees>
                <dollarAmount>0</dollarAmount>
            </findersFees>
            <clarificationOfResponse></clarificationOfResponse>
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        <useOfProceeds>
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                <dollarAmount>0</dollarAmount>
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        <signatureBlock>
            <authorizedRepresentative>true</authorizedRepresentative>
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                <issuerName>LIGHTING SCIENCE GROUP CORP</issuerName>
                <signatureName>/s/ John D. Mitchell, Jr.</signatureName>
                <nameOfSigner>John D. Mitchell, Jr.</nameOfSigner>
                <signatureTitle>Corporate Secretary and General Counsel</signatureTitle>
                <signatureDate>2010-04-29</signatureDate>
            </signature>
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</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----