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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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 o1UWf9HgHTd4OejkzEiHJg==

<SEC-DOCUMENT>0000902664-10-000008.txt : 20100105
<SEC-HEADER>0000902664-10-000008.hdr.sgml : 20100105
<ACCEPTANCE-DATETIME>20100105174033
ACCESSION NUMBER:		0000902664-10-000008
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20091231
FILED AS OF DATE:		20100105
DATE AS OF CHANGE:		20100105

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ENERGY FOCUS, INC/DE
		CENTRAL INDEX KEY:			0000924168
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC LIGHTING & WIRING EQUIPMENT [3640]
		IRS NUMBER:				943021850
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		32000 AURORA ROAD
		CITY:			SOLON
		STATE:			OH
		ZIP:			44139
		BUSINESS PHONE:		5104900719

	MAIL ADDRESS:	
		STREET 1:		32000 AURORA ROAD
		CITY:			SOLON
		STATE:			OH
		ZIP:			44139

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	FIBERSTARS INC /CA/
		DATE OF NAME CHANGE:	19940527

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			DIKER MANAGEMENT LLC
		CENTRAL INDEX KEY:			0001276525
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-24230
		FILM NUMBER:		10508611

	BUSINESS ADDRESS:	
		STREET 1:		745 FIFTH AVENUE
		STREET 2:		SUITE 1409
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10151
		BUSINESS PHONE:		2129040321

	MAIL ADDRESS:	
		STREET 1:		745 FIFTH AVENUE
		STREET 2:		SUITE 1409
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10151
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>p10-0005form4_ex.xml
<DESCRIPTION>ENERGY FOCUS, INC.
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2009-12-31</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000924168</issuerCik>
        <issuerName>ENERGY FOCUS, INC/DE</issuerName>
        <issuerTradingSymbol>EFOI</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001276525</rptOwnerCik>
            <rptOwnerName>DIKER MANAGEMENT LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>745 FIFTH AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 1409</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10151</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common stock, $0.00001 par value (the &quot;Common Stock&quot;)</value>
            </securityTitle>
            <transactionDate>
                <value>2009-12-31</value>
                <footnoteId id="F1"/>
                <footnoteId id="F2"/>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>375000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>.80</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2532108</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The shares of Common Stock to which this line refers are held indirectly by Diker Management, LLC (the &quot;Reporting Person&quot;),
 in its capacity as the registered investment adviser of certain managed accounts and funds. The Reporting Person is a
 registered investment adviser and as such disclaims all beneficial ownership of these shares and in any case disclaims
 beneficial ownership of these shares except to the extent of the Reporting Person's pecuniary interest in the shares of
 Common Stock. The Reporting Person is a registered investment adviser but has elected to file this Form 4 nevertheless.</footnote>
        <footnote id="F2">(continued from footnote 1)
The reported sale was made pursuant to the Letter Agreement and the December Letter Agreement disclosed in the Schedule 13D
 filed by the Reporting Person on November 12, 2009, in Amendment No. 1 to the Schedule 13D filed by the Reporting Person on
 December 23, 2009 and pursuant to an agreement with Ouercus Trust as disclosed in the Schedule 13G filed by the Reporting
 Persons on Januaary 5, 2010.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ C Diker</signatureName>
        <signatureDate>2010-01-05</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ M Diker</signatureName>
        <signatureDate>2010-01-05</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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