2BXJAZYCL-HC-TY2028Ambient Lighting

Rev1/26/2023 ShenzhenZYCELATechnologyCo.,Ltd. FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:2026-8-7 Ref:AttestationStatementsPart2.911(d)(5)(i)Filing FCCID:2BXJAZYCL-HC-TY2028 (“ShenzhenZYCELATechnologyCo.,Ltd.”)certifiesthattheequipmentforwhichauthorizationissought isnot“covered”equipmentprohibitedfromreceivinganequipmentauthorizationpursuanttosection 2.903oftheFCCrules. (“ShenzhenZYCELATechnologyCo.,Ltd.”)certifiesthattheequipmentforwhichauthorizationissought doesnotincludecybersecurityoranti-virussoftwareproducedorprovidedbyKasperskyLab,Inc.orany ofitssuccessorsandassignees,includingequipmentwithintegratedKasperskyLab,Inc.(oranyofits successorsandassignees)cybersecurityoranti-virussoftwarepursuanttoDA-24-886andKDB986446 D01CoveredEquipmentGuidancesectionB(2a). Deviceisinherentlycompliantbasedonhardwarelimitationsorsoftwarecontrols. or ASoftwareBillofMaterials(SBOM)isprovidedtotheTCBforreview,and Theend-userorthirdpartiescannotinstalladditionalsoftwareonthisdevice. Sincerely, (Applicantsignature)Miaoxiaohui (Applicantprintedname) Rev1/26/2023 ShenzhenZYCELATechnologyCo.,Ltd. FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:2026-8-7 Ref:AttestationStatementsPart2.911(d)(5)(ii)Filing FCCID:2BXJAZYCL-HC-TY2028 (“ShenzhenZYCELATechnologyCo.,Ltd.”)certifiesthat,asofthedateofthefilingoftheapplication, ShenzhenZYCELATechnologyCo.,Ltd.isnotidentifiedontheCoveredList(asaspecificallynamedentity oranyofitssubsidiariesoraffiliates)asanentityproducing“covered”equipment. Sincerely, (Applicantsignature) (Applicantprintedname)Miaoxiaohui

ShenzhenZYCELATechnologyCo.,Ltd. 2.911(d)(7)USAAgentv1.4 Section2.911(d)(7)USAAgentforServiceofProcess Companyname:ShenzhenZYCELATechnologyCo.,Ltd. Address:Rm501,Bldg2,HuiruitongElec.Factory,DafuInd.Zone,Kukeng,Guanlan, Longhua,Shenzhen,Guangdong,China ProductName:AmbientLighting FCCID:2BXJAZYCL-HC-TY2028 Model(s):ZYCL-HC-TY2028+,ZYCL-TY02-WX 2.911(d)(7)USADesignatedAgentforServiceofProcess We,[ShenzhenZYCELATechnologyCo.,Ltd.](“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 FRN:0036412567 ContactName:ThompsonLim Applicant Companyname:ShenzhenZYCELA TechnologyCo.,Ltd. Address:Rm501,Bldg2,HuiruitongElec. Factory,DafuInd.Zone,Kukeng, Guanlan,Longhua,Shenzhen, Guangdong,China FRN:0038739561 ShenzhenZYCELATechnologyCo.,Ltd. 2.911(d)(7)USAAgentv1.4 TelephoneNo:001-424-3474188 Email:[email protected] FCCGranteeCode:2BXJA ContactName:Miaoxiaohui TelephoneNo:18825247985 Email:[email protected] Signature: Title:Manager Signature: Title:GeneralManager Date:2026-8-7Date:2026-8-7 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

ShenzhenZYCELATechnologyCo.,Ltd. Date:2026-8-7 Product/ModelNumber:AmbientLighting/ZYCL-HC-TY2028+, ZYCL-TY02-WX FCCID:2BXJAZYCL-HC-TY2028 Towhomitmayconcern, Re:ProductCertificationRepresentativeAuthorizationLetter WeauthorizeQAILaboratoriesLtd.3980NorthFraserWay,BurnabyB.C. CanadaV5J5K5toactonourbehalfonallmattersconcerningtheabove namedequipment. Thisshallincludethefollowing: Testing Approvalapplicationsandprocedures WedeclarethatQAILaboratoriesLtd.isallowedtoforwardallinformation relatedtotheapprovalprojecttotheappliedcertificationbodyandtothe notificationentitiesandtodiscussanyissuesconcerningtheapproval application.AnyandallactscarriedoutbyQAILaboratoriesLtd.onour behalfshallhavethesameeffectasactsofourown. By:Miaoxiaohui. ContactListedonFCCWesbite Title:GeneralManager Email:[email protected] Telephone:18825247985 Onbehalfof:ShenzhenZYCELATechnologyCo.,Ltd.

ShenzhenZYCELATechnologyCo.,Ltd. OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USA Date:August7,2026 Subject;RequestforConfidentiality FCCID:2BXJAZYCL-HC-TY2028 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:Miaoxiaohui Title:GeneralManager

ShenzhenZYCELATechnologyCo.,Ltd. ProductSimilarityDeclaration Productname:AmbientLighting Modelname:ZYCL-HC-TY2028+,ZYCL-TY02-WX FCCID:2BXJAZYCL-HC-TY2028 We(ShenzhenZYCELATechnologyCo.,Ltd.)herebystatethat allthemodelsareelectricalidenticalincludingthesamesoftware parameterandhardwaredesign(i.e.,circuitdesign,PCBLayout, RFmodule/circuit,antennatype(s)andantennalocation, componentsonPCB,etc.,),samemechanicalstructureand design(includingproductenclosure,materials,etc.,),theonly differencearethemodelname.Allthemodelsarethesame circuitandRFmodule,exceptthemodelnameandthecolorof appearance. Signature: Name:Miaoxiaohui Title:GeneralManager Place,date:Shenzhen,2026.8.10

Label: AmbientLighting Model:ZYCL-HC-TY2028+ FCCID:2BXJAZYCL-HC-TY2028 45mm 35mm

FCCID:2BXJAZYCL-HC-TY2028 RFExposureEvaluation AccordingtoKDB447498D01GeneralRFExposureGuidancev06andpart2.1091，Unlessspecifically requiredbythepublishedRFexposureKDBprocedures,standalone1-gheadorbodyand10-gextremity SARevaluationforgeneralpopulationexposureconditions,bymeasurementornumericalsimulation,isnot requiredwhenthecorrespondingSARTestExclusionThresholdcondition(s),listedbelow,is(are)satisfied. Limits Thecriterialistedinthefollowingtableshallbeusedtoevaluatetheenvironmentimpactofhumanexposure toradiofrequency(RF)radiationasspecifiedin1.1307(b) LimitsforMaximumPermissibleExposure(MPE) Frequencyrange (MHz) Electricfield strength (V/m) Magneticfieldstrength (A/m) Powerdensity (mW/cm 2 ) Averagingtime (minutes) (A)LimitsforOccupational/ControlledExposures 0.3–3.06141.63*(100)6 3.0–301842/f4.89/f*(900/f 2 )6 30–30061.40.1631.06 300–1500f/3006 1500–100,00056 (B)LimitsforGeneralPopulation/UncontrolledExposure 0.3–1.346141.63*(100)30 1.34–30824/f2.19/f*(180/f 2 )30 30–30027.50.0730.230 300–1500f/150030 1500–100,0001.030 f=frequencyinMHz Friistransmissionformula:Pd=(Pout*G)/(4*pi*r 2 ) Where Pd=powerdensityinmW/cm 2 ,Pout=outputpowertoantennainmW; G=gainofantennainlinearscale,Pi=3.1416; R=distancebetweenobservationpointandcenteroftheradiatorincm PdidthelimitofMPE,1mW/cm 2 .Ifweknowthemaximumgainoftheantennaandthetotalpowerinputto theantenna,throughthecalculation,wewillknowthedistancerwheretheMPElimitisreached. TestProcedure SoftwareprovidedbyclientenabledtheEUTtotransmitandreceivedataatlowest,middleandhighest channelindividually. TestResultofRFExposureEvaluation SoaSARtestisnotrequired Operating Mode Frequency Measured Power Tuneup tolerance Max.Tune upPower Antenna Gain Power Densityat R=20cm Power Density Limit Result (MHz)(dBm)(dBm)(dBm)(dBi)(mW/cm 2 )(mW/cm 2 ) BLE(1M)2402-2480-0.04 0±1 1-0.580.0002191.0PASS

Report No.:SZNTT26025048E1-1 SZNTT-TR728-0Page1of24 RF Test Data FCC ID:2BXJAZYCL-HC-TY2028 Duty Cycle........................................................................................................................................................................2 Maximum Peak Conducted Output Power.......................................................................................................................5 -6dB Bandwidth................................................................................................................................................................8 Occupied Channel Bandwidth........................................................................................................................................11 Maximum Power Spectral Density Level....................................................................................................................... 14 Band Edge......................................................................................................................................................................18 Conducted RF Spurious Emission.................................................................................................................................21 Report No.:SZNTT26025048E1-1 SZNTT-TR728-0Page2of24 Duty Cycle ConditionModeFrequency(MHz)AntennaDutyCycle(%)CorrectionFactor(dB)1/T(kHz) NVNT BLE 1M2402Ant115.278.1610.47 NVNT BLE 1M2440Ant115.28.1810.53 NVNT BLE 1M2480Ant115.128.210.58 Report No.:SZNTT26025048E1-1 SZNTT-TR728-0Page3of24 Duty Cycle NVNT BLE 1M 2402MHz Ant1 Duty Cycle NVNT BLE 1M 2440MHz Ant1 Report No.:SZNTT26025048E1-1 SZNTT-TR728-0Page4of24 Duty Cycle NVNT BLE 1M 2480MHz Ant1 Report No.:SZNTT26025048E1-1 SZNTT-TR728-0Page5of24 Maximum Peak Conducted Output Power Conditi on ModeFrequency (MHz) AntennaConducted Power(dBm) Conducted Power(W) Limit Conducted(dBm) Verdict NVNT BLE 1M2402Ant1-0.040.0009930Pass NVNT BLE 1M2440Ant1-0.580.0008730Pass NVNT BLE 1M2480Ant1-1.320.0007430Pass Report No.:SZNTT26025048E1-1 SZNTT-TR728-0Page6of24 Peak Power NVNT BLE 1M 2402MHz Ant1 Peak Power NVNT BLE 1M 2440MHz Ant1 Report No.:SZNTT26025048E1-1 SZNTT-TR728-0Page7of24 Peak Power NVNT BLE 1M 2480MHz Ant1 Report No.:SZNTT26025048E1-1 SZNTT-TR728-0Page8of24 -6dB Bandwidth ConditionModeFrequency (MHz) Antenna-6dBBandwidth (MHz) Limit-6dBBandwidth (MHz) Verdict NVNTBLE 1M 2402Ant10.52040.5Pass NVNTBLE 1M 2440Ant10.52970.5Pass NVNTBLE 1M 2480Ant10.53180.5Pass Report No.:SZNTT26025048E1-1 SZNTT-TR728-0Page9of24 -6dB Bandwidth NVNT BLE 1M 2402MHz Ant1 -6dB Bandwidth NVNT BLE 1M 2440MHz Ant1 Report No.:SZNTT26025048E1-1 SZNTT-TR728-0Page10of24 -6dB Bandwidth NVNT BLE 1M 2480MHz Ant1 Report No.:SZNTT26025048E1-1 SZNTT-TR728-0Page11of24 Occupied Channel Bandwidth ConditionModeFrequency(MHz)Antenna99%OBW(MHz) NVNTBLE 1M2402Ant11.2191 NVNTBLE 1M2440Ant11.2492 NVNTBLE 1M2480Ant11.2548 Report No.:SZNTT26025048E1-1 SZNTT-TR728-0Page12of24 OBW NVNT BLE 1M 2402MHz Ant1 OBW NVNT BLE 1M 2440MHz Ant1 Report No.:SZNTT26025048E1-1 SZNTT-TR728-0Page13of24 OBW NVNT BLE 1M 2480MHz Ant1 Report No.:SZNTT26025048E1-1 SZNTT-TR728-0Page14of24 Maximum Power Spectral Density Level ConditionModeFrequency (MHz) AntennaConductedPSD (dBm/3kHz) Limit (dBm/3kHz) Verdict NVNTBLE 1M 2402Ant1-20.048Pass NVNTBLE 1M 2440Ant1-20.848Pass NVNTBLE 1M 2480Ant1-21.798Pass NVNTBLE 1M 2402Ant1-20.048Pass NVNTBLE 1M 2440Ant1-20.848Pass NVNTBLE 1M 2480Ant1-21.798Pass Report No.:SZNTT26025048E1-1 SZNTT-TR728-0Page15of24 PSD NVNT BLE 1M 2402MHz Ant1 PSD NVNT BLE 1M 2440MHz Ant1 Report No.:SZNTT26025048E1-1 SZNTT-TR728-0Page16of24 PSD NVNT BLE 1M 2480MHz Ant1 PSD NVNT BLE 1M 2402MHz Ant1 Report No.:SZNTT26025048E1-1 SZNTT-TR728-0Page17of24 PSD NVNT BLE 1M 2440MHz Ant1 PSD NVNT BLE 1M 2480MHz Ant1 Report No.:SZNTT26025048E1-1 SZNTT-TR728-0Page18of24 Band Edge ConditionModeFrequency(MHz)AntennaMaxValue(dBc)Limit(dBc)Verdict NVNTBLE 1M2402Ant1-49.52-20Pass NVNTBLE 1M2480Ant1-52.05-20Pass Report No.:SZNTT26025048E1-1 SZNTT-TR728-0Page19of24 Band Edge NVNT BLE 1M 2402MHz Ant1 Ref Band Edge NVNT BLE 1M 2402MHz Ant1 Emission Report No.:SZNTT26025048E1-1 SZNTT-TR728-0Page20of24 Band Edge NVNT BLE 1M 2480MHz Ant1 Ref Band Edge NVNT BLE 1M 2480MHz Ant1 Emission Report No.:SZNTT26025048E1-1 SZNTT-TR728-0Page21of24 Conducted RF Spurious Emission ConditionModeFrequency(MHz)AntennaMaxValue(dBc)Limit(dBc)Verdict NVNTBLE 1M2402Ant1-47.27-20Pass NVNTBLE 1M2440Ant1-41.83-20Pass NVNTBLE 1M2480Ant1-42.01-20Pass Report No.:SZNTT26025048E1-1 SZNTT-TR728-0Page22of24 Tx. Spurious NVNT BLE 1M 2402MHz Ant1 Ref Tx. Spurious NVNT BLE 1M 2402MHz Ant1 Emission Report No.:SZNTT26025048E1-1 SZNTT-TR728-0Page23of24 Tx. Spurious NVNT BLE 1M 2440MHz Ant1 Ref Tx. Spurious NVNT BLE 1M 2440MHz Ant1 Emission Report No.:SZNTT26025048E1-1 SZNTT-TR728-0Page24of24 Tx. Spurious NVNT BLE 1M 2480MHz Ant1 Ref Tx. Spurious NVNT BLE 1M 2480MHz Ant1 Emission

Antenna Specification Dongguan Fufei KangJian Technology Co., Ltd. Address:Room 202, Building 13, No.195 Zhen' an Middle Road, Changan Town, Dongguan City, Guangdong Province,China Summary ITEM ANT SPEC Model Name 2.4G ANT Horizontal Vertical 2400MHz 2450MHz2500MHz2400MHz2450MHz 2500MHz Center Frequency -1.26 -0.76 -0.58 -5.25 -2.46 -1.86 MAX. Gain -0.58dBi Polarization Horizontal and Vertical Azimuth Beam Pattern Omni-directional Impedance 50 Ohm Antenna Length Antenna Type PCB Antenna Antenna Photo & Length (mm) 14.4mm Horizontal: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -40 Scale: 5/div Gain(dB) Frequency (MHz) Max Min Avg 2400 -1.26174 -30.0801 -7.18716 2450 -0.765802 -36.5604 -7.48023 2500 -0.585582 -22.0315 -6.59127 Vertical: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -30 Scale: 5/div Gain(dB) Frequency (MHz) Max Min Avg 2400 -5.2537 -22.1424 -12.4294 2450 -2.4652 -24.5837 -10.4702 2500 -1.86120 -29.5214 -9.20432 ANT Test Labs：Attestation of Global Compliance Co., Ltd.

Shenzhen NTT Testing Technology Co.,Ltd. Report No.: SZNTT26025048E1-1 SZNTT-TR828-0Tel:0755-27889935Web:http://www.ntt-testing.comPage 1 of 27 TEST REPORT Applicant: Shenzhen ZYCELA Technology Co., Ltd. Address: Rm 501, Bldg 2, Huiruitong Elec. Factory, Dafu Ind. Zone, Kukeng, Guanlan, Longhua, Shenzhen, Guangdong, China Manufacturer : Shenzhen ZYCELA Technology Co., Ltd. Address: Rm 501, Bldg 2, Huiruitong Elec. Factory, Dafu Ind. Zone, Kukeng, Guanlan, Longhua, Shenzhen, Guangdong, China Product Name : Ambient Lighting Model Number : ZYCL-HC-TY2028+, ZYCL-TY02-WX Trademark: FCC ID: 2BXJAZYCL-HC-TY2028 Test Date: Jun. 14, 2026 – Jun. 16, 2026 Date of Report : Jul. 22, 2026 Test Result: This device described above has been tested by NTT, and the test results show that the equipment under test (EUT) is in compliance with the Standard requirements. And it is applicable only to the tested sample identified in the report. Test Procedure Used: Standards: FCC CFR Title 47 Part 15 Subpart C Section 15.247 ANSI C63.10-2020 + Cor. 1-2023+C63.10a-2024 + Errata to C63.10a-2024 KDB 558074 D01 15.247 Meas Guidance v05r02April 2,2019 Prepared by(Test Engineer): Cindy Qin Approved(Manager): Ken Wu Approved(Manager): Abel Yu Shenzhen NTT Testing Technology Co.,Ltd. Report No.: SZNTT26025048E1-1 SZNTT-TR828-0Tel:0755-27889935Web:http://www.ntt-testing.comPage 2 of 27 TABLE OF CONTENT 1. General Information....................................................................................4 1.1. Description of Device (EUT).......................................................................................................................4 1.2. Channel List..................................................................................................................................................4 1.3. Summary of test result................................................................................................................................5 1.4. Special Accessories and Auxiliary Equipment........................................................................................5 1.5. Test mode......................................................................................................................................................5 1.6. Test configuration.........................................................................................................................................5 1.7. Block Diagram...............................................................................................................................................6 1.8. Test Conditions.............................................................................................................................................6 1.9. Measurement Uncertainty (95% confidence levels, k=2)......................................................................6 1.10. Test Facility..................................................................................................................................................7 1.11. Test Equipment...........................................................................................................................................8 2. Conducted emission at the mains terminals test...................................10 2.1. Limit..............................................................................................................................................................10 2.2. Test Setup....................................................................................................................................................10 2.3. Test Procedure............................................................................................................................................10 2.4. Test Result...................................................................................................................................................10 3. Radiated Spurious Emissions..................................................................11 3.1. Limit..............................................................................................................................................................11 3.2. Test Setup....................................................................................................................................................12 3.3. Test Procedure............................................................................................................................................14 3.4. Test Result...................................................................................................................................................15 4. Conducted Spurious Emissions..............................................................20 4.1. Limit..............................................................................................................................................................20 4.2. Test Setup....................................................................................................................................................20 4.3. Test Procedure............................................................................................................................................20 4.4. Test Result...................................................................................................................................................21 5. Band Edge Measurement......................................................................... 22 5.1. Limit..............................................................................................................................................................22 5.2. Test setup....................................................................................................................................................22 5.3. Test Procedure...........................................…

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