<SEC-DOCUMENT>0000924168-18-000024.txt : 20180417
<SEC-HEADER>0000924168-18-000024.hdr.sgml : 20180417
<ACCEPTANCE-DATETIME>20180417181106
ACCESSION NUMBER:		0000924168-18-000024
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20180416
FILED AS OF DATE:		20180417
DATE AS OF CHANGE:		20180417

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			RISHI SATISH
		CENTRAL INDEX KEY:			0001219137

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36583
		FILM NUMBER:		18759883

	MAIL ADDRESS:	
		STREET 1:		C/O RAMBUS INC.
		STREET 2:		1050 ENTERPRISE WAY, SUITE 700
		CITY:			SUNNYVALE
		STATE:			CA
		ZIP:			94089

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
		STREET 2:		SUITE B
		CITY:			SOLON
		STATE:			OH
		ZIP:			44139
		BUSINESS PHONE:		4407151300

	MAIL ADDRESS:	
		STREET 1:		32000 AURORA ROAD
		STREET 2:		SUITE B
		CITY:			SOLON
		STATE:			OH
		ZIP:			44139

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	FIBERSTARS INC /CA/
		DATE OF NAME CHANGE:	19940527
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_152400302097103.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2018-04-16</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001219137</rptOwnerCik>
            <rptOwnerName>RISHI SATISH</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>32000 AURORA ROAD</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE B</rptOwnerStreet2>
            <rptOwnerCity>SOLON</rptOwnerCity>
            <rptOwnerState>OH</rptOwnerState>
            <rptOwnerZipCode>44139</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable></nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Restricted Stock Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2018-04-16</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>3169</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2018-06-20</value>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <value>2018-06-21</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>3169.0</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3169</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Each Restricted Stock Unit represents a contingent right to receive one share of Energy Focus, Inc. Common Stock.</footnote>
        <footnote id="F2">The Restricted Stock Units fully vest on the earlier of (i) the one year anniversary of the grant date or (ii) the date of the Company's annual meeting of stockholders next following the grant date.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Michael H. Port as Attorney-in-Fact</signatureName>
        <signatureDate>2018-04-17</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>powerofattorney-srishi.htm
<DESCRIPTION>POA FOR SECTION 16 FILINGS - S. RISHI
<TEXT>
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<div><a name="s94EB1E98CDCC93A45207D3BBEAD2092F"></a></div><div><div style="line-height:120%;text-align:left;font-size:11pt;"><font style="font-family:Arial;font-size:11pt;"><br></font></div></div><div><br></div><div style="line-height:120%;text-align:center;font-size:11pt;"><font style="font-family:Arial;font-size:11pt;font-weight:bold;">POWER OF ATTORNEY</font></div><div style="line-height:120%;text-align:center;font-size:11pt;"><font style="font-family:Arial;font-size:11pt;"><br></font></div><div style="line-height:120%;font-size:11pt;"><font style="font-family:Arial;font-size:11pt;"><br></font></div><div style="line-height:120%;text-indent:48px;font-size:11pt;"><font style="font-family:Arial;font-size:11pt;">KNOW ALL MEN BY THESE PRESENTS:  That the undersigned has made, constituted and appointed, and by this instrument does make, constitute and appoint, each of MICHAEL H. PORT, ANNA DI FIORE AND JANET A. SPREEN, acting individually, as his or her true and lawful attorney, for him or her, and in his or her name, place and stead, to affix, as attorney-in-fact, the signature of the undersigned to reports to the Securities and Exchange Commission on Form ID and reports on Forms 3, 4, 5 or 144 with respect to transactions or holdings by the undersigned in equity securities issued by Energy Focus, Inc., a public corporation incorporated in Delaware (&#8220;EFOI&#8221;), and to any and all amendments to such reports, giving and granting unto each such attorney-in-fact full power and authority to do and performance every act and thing whatsoever necessary to be done in the premises, as fully as the undersigned might or could do if personally present, hereby ratifying and confirming all that each such attorney-in-fact shall lawfully do or cause to be done by virtue hereof.</font></div><div style="line-height:120%;font-size:11pt;"><font style="font-family:Arial;font-size:11pt;"><br></font></div><div style="line-height:120%;text-indent:48px;font-size:11pt;"><font style="font-family:Arial;font-size:11pt;">This Power of Attorney shall revoke any Power of Attorney previously executed by the undersigned regarding the filing of Forms 3, 4, 5 or 144 with the Securities and Exchange Commission for transactions in EFOI securities, but this revocation does not invalidate any actions taken pursuant to any prior Powers of Attorney.</font></div><div style="line-height:120%;text-indent:48px;font-size:11pt;"><font style="font-family:Arial;font-size:11pt;">&#160;&#160;&#160;&#160;</font></div><div style="line-height:120%;text-indent:48px;font-size:11pt;"><font style="font-family:Arial;font-size:11pt;">This Power of Attorney shall expire on the date the undersigned is no longer required to file Form 3, 4, 5 or 144 reports with the Securities and Exchange Commission with respect to holdings of and transactions in securities issued by EFOI, unless revoked in writing prior thereto.</font></div><div style="line-height:120%;text-indent:48px;font-size:11pt;"><font style="font-family:Arial;font-size:11pt;">&#160;&#160;&#160;&#160;</font></div><div style="line-height:120%;text-indent:48px;font-size:11pt;"><font style="font-family:Arial;font-size:11pt;">IN WITNESS WHEREOF, this Power of Attorney has been signed at Saratoga, CA, this 16</font><font style="font-family:Arial;font-size:11pt;"><sup style="vertical-align:top;line-height:120%;font-size:7pt">th</sup></font><font style="font-family:Arial;font-size:11pt;">. day of April, 2018.</font></div><div style="line-height:120%;font-size:11pt;"><font style="font-family:Arial;font-size:11pt;"><br></font></div><div style="line-height:120%;font-size:11pt;"><font style="font-family:Arial;font-size:11pt;"><br></font></div><div style="line-height:120%;font-size:11pt;"><font style="font-family:Arial;font-size:11pt;"><br></font></div><div style="line-height:120%;font-size:11pt;"><font style="font-family:Arial;font-size:11pt;"><br></font></div><div style="line-height:120%;text-align:left;text-indent:336px;font-size:18pt;"><font style="font-family:Arial;font-size:11pt;"></font><font style="font-family:inherit;font-size:18pt;color:#0070c0;font-style:italic;font-weight:bold;text-decoration:underline;">Satish Rishi</font></div><div style="line-height:120%;text-indent:336px;font-size:11pt;"><font style="font-family:Arial;font-size:11pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;</font></div><div style="line-height:120%;text-align:left;padding-left:288px;text-indent:48px;font-size:11pt;"><font style="font-family:Arial;font-size:11pt;">Satish Rishi    </font></div><div style="line-height:120%;font-size:11pt;"><font style="font-family:Arial;font-size:11pt;"><br></font></div><div style="line-height:120%;font-size:11pt;"><font style="font-family:Arial;font-size:11pt;"><br></font></div><div style="line-height:120%;font-size:11pt;"><font style="font-family:Arial;font-size:11pt;"><br></font></div><div style="line-height:120%;font-size:11pt;"><font style="font-family:Arial;font-size:11pt;"><br></font></div><div style="line-height:120%;font-size:11pt;"><font style="font-family:Arial;font-size:11pt;"><br></font></div><div style="line-height:120%;font-size:11pt;"><font style="font-family:Arial;font-size:11pt;"><br></font></div><div style="line-height:120%;font-size:11pt;"><font style="font-family:Arial;font-size:11pt;"><br></font></div><div style="line-height:120%;font-size:11pt;"><font style="font-family:Arial;font-size:11pt;"><br></font></div><div style="line-height:120%;font-size:11pt;"><font style="font-family:Arial;font-size:11pt;"><br></font></div><div style="line-height:120%;font-size:11pt;"><font style="font-family:Arial;font-size:11pt;"><br></font></div><div style="line-height:120%;font-size:11pt;"><font style="font-family:Arial;font-size:11pt;"><br></font></div><div style="line-height:120%;font-size:11pt;"><font style="font-family:Arial;font-size:11pt;"><br></font></div><div style="line-height:100%;text-align:left;font-size:11pt;"><font style="font-family:Arial;font-size:11pt;">&#160;</font></div><div style="line-height:120%;font-size:11pt;"><font style="font-family:Arial;font-size:11pt;"><br></font></div><div><br></div><div><div style="line-height:120%;text-align:left;font-size:11pt;"><font style="font-family:Arial;font-size:11pt;"><br></font></div></div>    </body>
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