2BW3Z-FSD-42-BLACKModern Ceiling Fan

zhongshanshiyudengdianqiyouxiangongsi

Application Details

Equipment Class: DSC - Part 15 Security/Remote Control Transmitter
Date of Grant: Jul 23, 2026
Application Purpose: Original Equipment
Equipment Note: Modern Ceiling Fan
Frequency Range: 433.92000000 - 433.92000000
Company: zhongshanshiyudengdianqiyouxiangongsi
Country: China

Documents & Files

Select a file to view

Document Text

Text extracted from the exhibit documents filed with the FCC. Open a document above to read the original.

Attestation Statements

Rev1/26/2023 zhongshanshiyudengdianqiyouxiangongsi FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:2026-7-22 Ref:AttestationStatementsPart2.911(d)(5)(i)Filing FCCID:2BW3Z-FSD-42-BLACK (“zhongshanshiyudengdianqiyouxiangongsi”)certifiesthattheequipmentforwhichauthorizationis soughtisnot“covered”equipmentprohibitedfromreceivinganequipmentauthorizationpursuantto section2.903oftheFCCrules. (“zhongshanshiyudengdianqiyouxiangongsi”)certifiesthattheequipmentforwhichauthorizationis soughtdoesnotincludecybersecurityoranti-virussoftwareproducedorprovidedbyKasperskyLab,Inc. oranyofitssuccessorsandassignees,includingequipmentwithintegratedKasperskyLab,Inc.(oranyof itssuccessorsandassignees)cybersecurityoranti-virussoftwarepursuanttoDA-24-886andKDB 986446D01CoveredEquipmentGuidancesectionB(2a). Deviceisinherentlycompliantbasedonhardwarelimitationsorsoftwarecontrols. or ASoftwareBillofMaterials(SBOM)isprovidedtotheTCBforreview,and Theend-userorthirdpartiescannotinstalladditionalsoftwareonthisdevice. Sincerely, (Applicantsignature)YihuaLi (Applicantprintedname) Rev1/26/2023 zhongshanshiyudengdianqiyouxiangongsi FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:2026-7-22 Ref:AttestationStatementsPart2.911(d)(5)(ii)Filing FCCID:2BW3Z-FSD-42-BLACK (“zhongshanshiyudengdianqiyouxiangongsi”)certifiesthat,asofthedateofthefilingoftheapplication, zhongshanshiyudengdianqiyouxiangongsiisnotidentifiedontheCoveredList(asaspecificallynamed entityoranyofitssubsidiariesoraffiliates)asanentityproducing“covered”equipment. Sincerely, (Applicantsignature) (Applicantprintedname)YihuaLi

Attestation Statements

zhongshanshiyudengdianqiyouxiangongsi 2.911(d)(7)USAAgentv1.4 Section2.911(d)(7)USAAgentforServiceofProcess Companyname:zhongshanshiyudengdianqiyouxiangongsi Address:Room102,1stFloor,No.2,Lane10GuangzeStreet,LiexiyiCommunity,Xiaolan Town,ZhongshanCity,528415,Guangdong,China ProductName:ModernCeilingFan FCCID:2BW3Z-FSD-42-BLACK Model(s):FSD-42-Black,FSD-42-White,FSD-42-Nickel,FSD-42-Gold, FSD-42-Brown,FSD-42-Gold-All,FSD-42-Gray 2.911(d)(7)USADesignatedAgentforServiceofProcess We,[zhongshanshiyudengdianqiyouxiangongsi](“theapplicant”)designate[CELLT INC.] NOTE1 forthepurposeofacceptingserviceofprocessonbehalfoftheapplicant. Applicantconsent:WeAcknowledgeourconsenttoacceptserviceofprocessinthe UnitedStatesformattersrelatedtotheapplicableequipment,andatthephysicalU.S. addressandemailaddressofthedesignatedagentandacknowledgeour acceptanceofourobligationtomaintainanagentforserviceofprocessintheUnited Statesfornolessthanoneyearaftereitherthegranteehaspermanentlyterminated allmarketingandimportationoftheapplicableequipmentwithintheU.S.,orthe conclusionofanyCommission-relatedadministrativeorjudicialproceedinginvolving theequipment,whicheverislater. Agentobligation:WeAcknowledgeourobligationtoacceptserviceofprocessinthe UnitedStatesformattersrelatedtotheapplicableequipmentatourphysicalU.S. addressandemailaddressfornolessthanoneyearaftereitherthegranteehas permanentlyterminatedallmarketingandimportationoftheapplicableequipment withintheU.S.,ortheconclusionofanyCommission-relatedadministrativeorjudicial proceedinginvolvingtheequipment,whicheverislater. USAAgent Companyname:CELLTINC. Address:140121STST#12958 SACRAMENTO,CA95811,USA Applicant Companyname: zhongshanshiyudengdianqiyouxiangongsi Address:Room102,1stFloor,No.2,Lane 10GuangzeStreet,LiexiyiCommunity, XiaolanTown,ZhongshanCity,528415, Guangdong,China zhongshanshiyudengdianqiyouxiangongsi 2.911(d)(7)USAAgentv1.4 FRN:0036412567 ContactName:ThompsonLim TelephoneNo:001-424-3474188 Email:[email protected] FRN:0038656773 FCCGranteeCode:2BW3Z ContactName:YihuaLi TelephoneNo:18825007118 Email:[email protected] Signature: Title:Manager Signature: Title:Manager Date:2026-7-22Date:2026-7-22 NOTE1:AnapplicantlocatedintheUnitedStatesmaydesignateitselfastheagentforservice ofprocess. Reference;FederalRegisterdocument2022-28263publishedon02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-nation al-security-threats-to-the-communications-supply-chain-through-the

Cover Letter(s)

zhongshanshiyudengdianqiyouxiangongsi Date ： 2026-7-22 Product/ModelNumber:ModernCeilingFan/FSD-42-Black,FSD-42- White,FSD-42-Nickel,FSD-42-Gold,FSD-42-Brown,FSD-42-Gold-All, FSD-42-Gray FCCID ： 2BW3Z-FSD-42-BLACK Towhomitmayconcern, Re:ProductCertificationRepresentativeAuthorizationLetter WeauthorizeQAILaboratoriesLtd.3980NorthFraserWay,BurnabyB.C. CanadaV5J5K5toactonourbehalfonallmattersconcerningtheabove namedequipment. Thisshallincludethefollowing: Testing Approvalapplicationsandprocedures WedeclarethatQAILaboratoriesLtd.isallowedtoforwardallinformation relatedtotheapprovalprojecttotheappliedcertificationbodyandtothe notificationentitiesandtodiscussanyissuesconcerningtheapproval application.AnyandallactscarriedoutbyQAILaboratoriesLtd.onour behalfshallhavethesameeffectasactsofourown. By:YihuaLi ContactListedonFCCWesbite Title:Manager Email:[email protected] Telephone:18825007118 Onbehalfof:zhongshanshiyudengdianqiyouxiangongsi

Cover Letter(s)

zhongshanshiyudengdianqiyouxiangongsi OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USA Date:July22,2026 Subject;RequestforConfidentiality FCCID:2BW3Z-FSD-42-BLACK ToWhomItMayConcern, PursuanttotheprovisionsoftheCommission’srulesTitle47Sections§0.457and§0.459,we arerequestingtheCommissiontowithholdthefollowingattachment(s)asconfidential documentsfrompublicdisclosureindefinitely. Thesedocumentscontaindetailedsystemandequipmentdescriptionsandareconsideredas proprietaryinformationinoperationoftheequipment.Thepublicdisclosureofthese documentsmightbeharmfultoourcompanyandwouldgivecompetitorsanunfairadvantage inthemarket. SchematicDiagram BlockDiagram PartsList OperationalDescription Tune-upProcedure SoftwareSecurityRequirementsforUNIIdevices Inadditionaltoabovementioneddocuments,inordertocomplywiththemarketingregulations inTitle47CFR§2.803andtheimportationrulesinTitle47CFR§2.1204,whileensuringthat businesssensitiveinformationremainsconfidentialuntiltheactualmarketingofnewly authorizeddevices,werequestShortTermConfidentialityofthefollowingattachment(s); ExternalPhotos TestSetupPhotos InternalPhotos UserManual For45days,pursuanttoPublicNoticeDA04-1705. OR For180dayspursuanttoKDB726920D01. Itisourunderstandingthatallmeasurementtestreports,FCCIDlabelformatand correspondenceduringthecertificationreviewprocesscannotbegrantedasconfidential documentsandthisinformationwillbeavailableforpublicreviewoncethegrantofequipment authorizationisissued. Sincerely, Signature: Name:YihuaLi Title:Manager

Cover Letter(s)

zhongshanshiyudengdianqiyouxiangongsi ProductSimilarityDeclaration Productname:ModernCeilingFan Modelname:FSD-42-Black,FSD-42-White,FSD-42-Nickel,FSD-42- Gold,FSD-42-Brown,FSD-42-Gold-All,FSD-42-Gray Trademark:DAHUICFL FCCID:2BW3Z-FSD-42-BLACK We(zhongshanshiyudengdianqiyouxiangongsi)herebystatethat allthemodelsareelectricalidenticalincludingthesamesoftware parameterandhardwaredesign(i.e.,circuitdesign,PCBLayout, RFmodule/circuit,antennatype(s)andantennalocation, componentsonPCB,etc.,),samemechanicalstructureand design(includingproductenclosure,materials,etc.,),theonly differencearethemodelname.Allthemodelsarethesame circuitandRFmodule,exceptthemodelname. Signature: Name:YihuaLi Title:Manager Place,date:zhongshan,2026.7.22

ID Label/Location Info

labelandlabellocation labellocation Labelsize：35×25mm Model:FSD-42-Black FCCID:2BW3Z-FSD-42-BLACK

RF Exposure Info

FCCID:2BW3Z-FSD-42-BLACK RFExposureEvaluation AccordingtoKDB447498D01GeneralRFExposureGuidancev06andpart2.1093， UnlessspecificallyrequiredbythepublishedRFexposureKDBprocedures,standalone 1-gheadorbodyand10-gextremitySARevaluationforgeneralpopulationexposure conditions,bymeasurementornumericalsimulation,isnotrequiredwhenthe correspondingSARTestExclusionThresholdcondition(s),listedbelow,is(are)satisfied. For100MHzto6GHzandtestseparationdistances≤5.0mm,the1-gand10-gSARtest exclusionthresholdsaredeterminedbythefollowing: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance, mm)]·[√f (GHz) ]≤3.0for1-gSAR,and≤7.5for10-gextremitySAR,where f (GHz) istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculation Theresultisroundedtoonedecimalplaceforcomparison Here, EIRP=EMeas+20log(dMeas)-104.7 EIRPistheequivalentisotropicallyradiatedpower,indBm EMeasisthefieldstrengthoftheemissionatthemeasurementdistance,indBμV/m dMeasisthemeasurementdistance,inm SoaSARtestisnotrequired Frequency MHz Field strength (dBuV/m) EIRP (dBm) Max tune-up (dBm) Min. Distance (mm) Calc. thresholds Limit 433.9281.3-13.9-135.00.0066033.0

Test Report

FCC ID:2BW3Z-FSD-42-BLACK Manufacture:zhongshanshiyudengdianqiyouxiangongsi Address: Room 102,1stFloor,No.2, Lane 10Guangze Street, Liexiyi Community, Xiaolan Town, Zhongshan City, 528415, Guangdong, China Frequency: 433.92MHz Antenna Type: PCB Antenna Antenna gain: 0dBi Antenna dimension drawing Unit:mm

Test Report

SZNTT-TR829-0 Page 1 of 28 Hotline:0755-27889935http://www.ntt-testing.com FCCTESTREPORT FCCID:2BW3Z-FSD-42-BLACK Product: ModernCeilingFan ModelName: FSD-42-Black,FSD-42-White,FSD-42-Nickel, FSD-42-Gold,FSD-42-Brown,FSD-42-Gold-All, FSD-42-Gray Brand: DAHUICFL ReportNo.: SZNTT26027284E1-1 Preparedfor zhongshanshiyudengdianqiyouxiangongsi Room102,1stFloor,No.2,Lane10GuangzeStreet,LiexiyiCommunity,XiaolanTown, ZhongshanCity,528415,Guangdong,China Preparedby ShenzhenNTTTestingTechnologyCo.,Ltd. 1B,Building2,FactoryBuilding&103,Building3,FactoryBuilding,DayangIndustrial Park,No.4,IndustrialAvenue,TangweiCommunity,FuhaiSub-district,Bao'anDistrict, ShenzhenCity,Guangdong,China TEL:0755-27889935 FAX:/ ReportNo.:SZNTT26027284E1-1 SZNTT-TR829-0Page2of28 Hotline:0755-27889935http://www.ntt-testing.com 1 TESTRESULTCERTIFICATION Applicant’sname:zhongshanshiyudengdianqiyouxiangongsi Address: Room102,1stFloor,No.2,Lane10GuangzeStreet,LiexiyiCommunity, XiaolanTown,ZhongshanCity,528415,Guangdong,China Manufacture'sname:zhongshanshiyudengdianqiyouxiangongsi Address: Room102,1stFloor,No.2,Lane10GuangzeStreet,LiexiyiCommunity, XiaolanTown,ZhongshanCity,528415,Guangdong,China Productname:ModernCeilingFan Modelname: FSD-42-Black SeriesModelname: FSD-42-White,FSD-42-Nickel,FSD-42-Gold,FSD-42-Brown, FSD-42-Gold-All,FSD-42-Gray Standards:FCCPART15C15.231 Testprocedure: ANSIC63.10-2020+Cor.1-2023+C63.10a-2024+Erratato C63.10a-2024 Dateoftest:Jul.02,2026-Jul.09,2026 DateofIssue:Jul.10,2026 ThisdevicedescribedabovehasbeentestedbyNTT,andthetestresultsshowthatthe equipmentundertest(EUT)isincompliancewiththeFCCrequirements.Anditisapplicableonlyto thetestedsampleidentifiedinthereport. Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofNTT,thisdocument maybealteredorrevisedbyNTT,personalonly,andshallbenotedintherevisionofthedocument. Preparedby(TestEngineer): CindyQin Reviewer(Supervisor): KenWu Approved(Manager): AbelYu ReportNo.:SZNTT26027284E1-1 SZNTT-TR829-0Page3of28 Hotline:0755-27889935http://www.ntt-testing.com TableofContentsPage 1TESTRESULTCERTIFICATION................................................................................2 2.SUMMARYOFTESTRESULTS...............................................................................5 2.1TESTFACILITY.................................................................................................................6 2.2MEASUREMENTUNCERTAINTY....................................................................................6 3.GENERALINFORMATION.........................................................................................7 3.1GENERALDESCRIPTIONOFEUT.................................................................................7 3.2DESCRIPTIONOFTESTMODES....................................................................................8 3.3BLOCKDIGRAMSHOWINGTHECONFIGURATIONOFSYSTEMTESTED..............8 3.4DESCRIPTIONOFSUPPORTUNITS(CONDUCTEDMODE)........................................8 3.5EQUIPMENTSLISTFORALLTESTITEMS...................................................................9 4.EMCEMISSIONTEST.............................................................................................11 4.1CONDUCTEDEMISSIONMEASUREMENT..................................................................11 4.1.1POWERLINECONDUCTEDEMISSIONLIMITS..................................................11 4.1.2TESTPROCEDURE...............................................................................................12 4.1.3DEVIATIONFROMTESTSTANDARD..................................................................12 4.1.4TESTSETUP...........................................................................................................12 4.1.5EUTOPERATINGCONDITIONS...........................................................................12 4.1.6TESTRESULTS......................................................................................................12 4.2RADIATEDEMISSIONMEASUREMENT.....................................................................13 4.2.1RADIATEDEMISSIONLIMITS...............................................................................13 4.2.2TESTPROCEDURE...............................................................................................14 4.2.3TESTSETUP...........................................................................................................15 4.2.4EUTOPERATINGCONDITIONS...........................................................................16 4.2.5TESTRESULTS....................................................................................................16 5.1APPLIEDPROCEDURES/LIMIT.............................................................................21 5.2TESTPROCEDURE..................................................................................................21 5.3DEVIATIONFROMSTANDARD...............................................................................21 5.4TESTSETUP..............................................................................................................21 5.5EUTOPERATIONCONDITIONS..............................................................................21 5.6TESTRESULTS.........................................................................................................22 6.CALCULATIONOFAVERAGEFACTOR................................................................23 7.DWELLTIME...........................................................................................................25 7.1APPLICABLESTANDARD.............................................................................................25 7.2TESTPROCEDURE........................................................................................................25 7.5EUTOPERATIONCONDITIONS....................................................................................25 7.6TESTRESULTS.................................................................................................…

Text truncated - open the document above for the full version.