<SEC-DOCUMENT>0001124796-21-000014.txt : 20210106
<SEC-HEADER>0001124796-21-000014.hdr.sgml : 20210106
<ACCEPTANCE-DATETIME>20210106160620
ACCESSION NUMBER:		0001124796-21-000014
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210104
FILED AS OF DATE:		20210106
DATE AS OF CHANGE:		20210106

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			CARANO BANDEL L
		CENTRAL INDEX KEY:			0001183755

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38462
		FILM NUMBER:		21510523

	MAIL ADDRESS:	
		STREET 1:		525 UNIVERSITY AVENUE
		STREET 2:		SUITE 1300
		CITY:			PALO ALTO
		STATE:			CA
		ZIP:			94301

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NLIGHT, INC.
		CENTRAL INDEX KEY:			0001124796
		STANDARD INDUSTRIAL CLASSIFICATION:	SEMICONDUCTORS & RELATED DEVICES [3674]
		IRS NUMBER:				912066376
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		5408 NE 88TH STREET
		STREET 2:		BUILDING E
		CITY:			VANCOUVER
		STATE:			WA
		ZIP:			98665
		BUSINESS PHONE:		360-566-4460

	MAIL ADDRESS:	
		STREET 1:		5408 NE 88TH STREET
		STREET 2:		BUILDING E
		CITY:			VANCOUVER
		STATE:			WA
		ZIP:			98665

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	NLIGHT PHOTONICS CORP
		DATE OF NAME CHANGE:	20000925
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_160996716759938.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2021-01-04</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001124796</issuerCik>
        <issuerName>NLIGHT, INC.</issuerName>
        <issuerTradingSymbol>LASR</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001183755</rptOwnerCik>
            <rptOwnerName>CARANO BANDEL L</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>525 UNIVERSITY AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 1300</rptOwnerStreet2>
            <rptOwnerCity>PALO ALTO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94301</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2021-01-04</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>466</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>4969</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">The reporting person has elected to receive restricted stock units in lieu of cash retainer fees payable for service on the Issuer's board of directors and any committees thereof. Each restricted stock unit represents a contingent right to receive, following vesting, one share of the Issuer's common stock.  The number of restricted stock units issued represents the quotient of (A) the amount of such fees divided by (B) the Issuer's closing stock price on the grant date, rounded down to the nearest whole share.  All restricted stock units will vest on December 31, 2021 subject to the non-employee director continuing to be a service provider through the applicable vesting date.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Meredith Weisshaar, as attorney-in-fact</signatureName>
        <signatureDate>2021-01-06</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
