2BDV5-SM-5050RGB-01Abyss Ambient Light

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Local Representative Letter For Certification Service in the USA Federal Communications Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Section 2.911(d)(7), of the Commission’s Rules (47 C.F.R.) we attest as follows for the product listed below: FCC ID Model name 2BDV5-SM-5050RGB-01 SM-5050RGB-01 We hereby acknowledge as follows: i.both signees confirm that the point of contact accepts responsibility to act as a US- American Representative on behalf of the applicant ii.the point of contact provides the physical U.S. address and email as listed below iii.both parties maintain the requirements of this agreement without expiration date US-American Point of Contact Applicant/Approval Holder Signature Signature Company Name: Global Product Services and Consultation LLC Shenzhen Saiming Photoelectric Technology Co., Ltd. FRN: 00334067030034569129 Contact Name: Mr Michael Chan Fei Zhang Address: 328 W Palm Ave.Monrovia,CA 91016,United States Elevator 3-4, 5th Floor, Aimeite Science Park, HuangfenglingIndustrial Zone, Shiyan Town, Bao'an District, Shenzhen Phone: (626)366-4358 +8617674606030 Email: [email protected] [email protected] Date : 01/06/2026 SC6015092

CoveredEquipmentAttestationLetter ForCertificationServiceintheUSA FederalCommunicationsCommission EquipmentAuthorizationDivision,ApplicationProcessingBranch 7435OaklandMillsRoad Columbia,MD21048 Towhomitmayconcern PursuanttoSection2.911(d)(5)(i)-(ii)oftheCommission’sRules(47C.F.R.)weattestas followsfortheproductlistedbelow: FCCIDModelname 2BDV5-SM-5050RGB-01SM-5050RGB-01 We, Applicant CompanyName:ShenzhenSaimingPhotoelectricTechnology Co.,Ltd. Address:Elevator3-4,5thFloor,AimeiteScience Park,HuangfenglingIndustrialZone,Shiyan Town,Bao'anDistrict,Shenzhen Phone:+8617674606030 certifythattheequipmentforwhichauthorizationissoughtisnot“covered”equipment prohibitedfromreceivinganequipmentauthorizationpursuanttosection2.903oftheFCC rules.Thisincludesthecybersecurityandanti-virussoftwareproducedorprovidedby KasperskyLab,Inc.oranyofistsuccessorsandassignees. Wecertifythat,asofthedateofthefilingoftheapplication,theapplicantisnotidentified ontheCoveredListasanentityproducing“covered”equipment. Ifyouhaveanyquestions,pleasefeelfreetocontactusattheaddressshownbelow. Sincerely, 2026-01-06 SignatureDate PrintedNameofSignee:FeiZhang Company:ShenzhenSaimingPhotoelectric TechnologyCo.,Ltd. Phone:+8617674606030 Email:[email protected] Address:Elevator3-4,5thFloor,Aimeite SciencePark,HuangfenglingIndustrialZone, ShiyanTown,Bao'anDistrict,Shenzhen Fax:N/A

ConfidentialityRequestLetter ForCertificationServiceintheUSA FederalCommunicationCommission EquipmentAuthorizationDivision,ApplicationProcessingBranch 7435OaklandMillsRoad Columbia,MD21048 Towhomitmayconcern PursuanttoParagraphs§0.457and0.459oftheCommission’sRules(47C.F.R.)andSection §552(b)(4)oftheFreedomofInformationAct,werequestconfidentialityforthe documentationofthefollowingproducts: FCCIDModelname 2BDV5-SM-5050RGB-01SM-5050RGB-01 Fortheproductslistedabove,werequestpermanentconfidentialityforallapplicable exhibitsasthereare:  theOperationalDescription  theBlockDiagram theSchematics Theabovelistedexhibitscontaintradesecretsandproprietaryinformationthatcouldbeof benefittoourcompetitors. Ifyouhaveanyquestions,pleasefeelfreetocontactusattheaddressshownbelow. Sincerely, 2026-01-06 SignatureDate PrintedNameofSignee/Title:FeiZhang/Manager Company:ShenzhenSaimingPhotoelectricTechnologyCo.,Ltd. Address:Elevator3-4,5thFloor,AimeiteSciencePark, HuangfenglingIndustrialZone,ShiyanTown,Bao'an District,Shenzhen Phone:+8617674606030 Fax:-- Email:[email protected]

ReportNo.:CISRR25120924901 Page 45 of 49 9.EXTERNALANDINTERNALPHOTOS 9.1.ExternalPhotos ReportNo.:CISRR25120924901 Page 46 of 49 ReportNo.:CISRR25120924901 Page 47 of 49

Label Size:30mm*20mm Abyss Ambient Light Model No.: SM-5050RGB-01 FCC ID: 2BDV5-SM-5050RGB-01 Label Location

ReportNo.:CISRR25120924901 Page 48 of 49 9.2.InternalPhotos ReportNo.:CISRR25120924901 Page 49 of 49 ------Endofthereport----- ANT

ReportNo.:CISRR25120924902 Reporttemplateversion:CISE-TR-001-A0Page:1of5 TESTREPORT RFExposureEvaluation ReportNo.CISRR25120924902 ProjectNo.CISR251209249 FCCID2BDV5-SM-5050RGB-01 ApplicantShenzhenSaimingPhotoelectricTechnologyCo.,Ltd. Address Elevator3-4,5thFloor,AimeiteSciencePark,HuangfenglingIndustrial Zone,ShiyanTown,Bao'anDistrict,Shenzhen ManufacturerShenzhenSaimingPhotoelectricTechnologyCo.,Ltd. Address Elevator3-4,5thFloor,AimeiteSciencePark,HuangfenglingIndustrial Zone,ShiyanTown,Bao'anDistrict,Shenzhen ProductNameAbyssAmbientLight Trademark- Model/TypereferenceSM-5050RGB-01 ListedModel(s)- Standard 47CFRPart2.1093 DateofsamplereceiptDecember12,2025 TestdateDecember12,2025toDecember16,2025 IssuedateDecember22,2025 TestresultComplied Reviewedby:LucasHuang Approvedby:HansHu Thetestresultsrelateonlytothetestedsamples. ThetestreportshouldnotbereproducedexceptinfullwithoutthewrittenapprovalofShenzhenBangceTesting TechnologyCo.,Ltd. ReportNo.:CISRR25120924902 Reporttemplateversion:CISE-TR-001-A0Page:2of5 1.APPLICABLESTANDARD 47CFRPart2.1093:Radiofrequencyradiationexposureevaluation:portabledevices ANSIC95.1–3999:IEEEStandardforSafetyLevelswithRespecttoHumanExposuretoRadioFrequency ElectromagneticFields,3kHzto300GHz. FCCKDBpublication447498D01GeneralRFExposureGuidancev06:MobileandPortableDevicesRF ExposureProceduresandEquipmentAuthorizationPolicies. 47CFRPart1.1307:Actionsthatmayhaveasignificantenvironmentaleffect,forwhichEnvironmental Assessments(EAs)mustbeprepared. 2.REPORTVERSION VersionNo.IssuedateDescription 00December22,2025Original ReportNo.:CISRR25120924902 Reporttemplateversion:CISE-TR-001-A0Page:3of5 3.RADIOSPECIFICATIONDESCRIPTION Bluetooth Supportedtype:BREDRLE-1Mbps LE-2Mbps Note:PleaserefertoRFreportfordetailedtechnicalspecifications 4.SIMULTANEOUSTRANSMISSIONANALYSIS ThedeviceuseasingletransmittermoduleandantennaforBluetooth. ReportNo.:CISRR25120924902 Reporttemplateversion:CISE-TR-001-A0Page:4of5 5.TESTRESULT 5.1.Standalonetransmission Limit: KDB447498D01v06,Clause4.3.1a) For100MHzto6GHzandtestseparationdistances≤50mm,the1-gand10-g SARtestexclusionthresholdsaredeterminedbythefollowing: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparation distance,mm)]*[√f(GHz)]≤3.0for1-gSAR,and≤7.5for10-gextremitySAR,where f(GHz)istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculation31The resultisroundedtoonedecimalplaceforcomparison Thevalues3.0and7.5arereferredtoasnumericthresholdsinstepb)below Thetestexclusionsareapplicableonlywhentheminimumtestseparationdistanceis≤50mm, andfortransmissionfrequenciesbetween100MHzand6GHz.Whentheminimumtest separationdistanceis<5mm,adistanceof5mmaccordingto4.1f)isappliedtodetermine SARtestexclusion. Result: Passed TestData Radiotype Frequency (GHz) Maximum output power #1 (dBm) Antenna gain #2 (dBi) Maximum EIRP #3 (dBm) Maximum tune-up EIRP(dBm) Minimum distance (mm) Evaluated value LimitResult BLE2.402-1.390-1.39-15.000.24623.00PASS Note #1:ThisvaluecomesfromtheRFtestreport. #2:Thisvalueisdeclaredbytheapplicant. #3:EIRP=Maximumoutputpower+Antennagain. #4:Thisvalueisdeclaredbytheapplicant. ReportNo.:CISRR25120924902 Reporttemplateversion:CISE-TR-001-A0Page:5of5 5.2.Simultaneoustransmission Limit: KDB447498D01v06,Clause4.3.2,47CFRPart1.1307 InthecaseofxedRFsourcesoperatinginthesametime-averagingperiod,orof multiplemobileorportableRFsourceswithinadeviceoperatinginthesametime averagingperiod,ifthesumofthefractionalcontributionstotheapplicablethresholds islessthanorequalto1asindicatedinthefollowingequation. Where a=numberoffxed,mobile,orportableRFsourcesclaimingexemptionusingparagraph (b)(3)(i)(B)ofthissectionforP,includingexistingexempttransmittersandthosebeing added. b=numberoffxed,mobile,orportableRFsourcesclaimingexemptionusingparagraph (b)(3)(i)(C)ofthissectionforThresholdERP,includingexistingexempttransmittersand thosebeingadded. c=numberofexistingfixed,mobile,orportableRFsourceswithknownevaluationforthespeci edminimumdistanceincludingexistingevaluatedtransmitters. P j =theavailablemaximumtime-averagedpowerortheERP,whicheverisgreater,forxed, mobile,orportableRFsourceiatadistancebetween0.5cmand40cm(inclusive). P th,j =theexemptionthresholdpower(P)accordingtoparagraph(b)(3)(i)(B)ofthissectionfor xed,mobile,orportableRFsourcei. ERP j =theERPoffixed,mobile,orportableRFsourcej. ERP th,j =exemptionthresholdERPforfixed,mobile,orportableRFsourcej,atadistanceofat leastλ/2πaccordingtotheapplicableformulaofparagraph(b)(3)(i)(C)ofthissection. Evaluated k =themaximumreportedSARorMPEoffixed,mobile,orportableRFsourcekeither inthedeviceoratthetransmittersitefromanexistingevaluationatthelocationofexposure. ExposureLimit k =eitherthegeneralpopulation/uncontrolledmaximumpermissibleexposure (MPE)orspecicabsorptionrate(SAR)limitforeachxed,mobile,orportableRFsourcek, asapplicablefrom§1.1310ofthischapter. Result:NotApplicable --------EndofReport--------

Shenzhen Qianghe Technology Co., Ltd. Antenna specification Quick Reference Date Antenna Introduction Bluetooth antenna is directly mounted on the PCB board Frequenc Range 2402 ~ 2480MHz Ant. Port Input Pwr. (dBm) 0 (Typ. BT class 2 output power) Tot. Rad. Pwr. (dBm) -1.2 (Input pwr – loss pwr) Peak EIRP(dBm) 0 Efficiency (dB) 1.0% Gain (dBi) 0 Maximum Power (dBm) 0 (XY-plane) Minimum Power (dBm) 0(XY-plane) Avg. Power (dBm) 0(XY-plane) Input Impendence(ohm) 50 Polarization Type V ertical & Horizontal V . S .W . R < 6 All the technical data and information contained herein are subject to change without prior notice Antenna Layout & module on the system board Room 806, Building C, Komlong Science and Technology Park, No. 6, Guansheng 5th Road, Luhu Community, Guanhu Subdistrict, Longhua District, Shenzhen City Shenzhen Qianghe Technology Co., Ltd. Antenna Gain Gain Table Unit in dBi @2.44GHz XY-plane XZ-plane YZ-plane Efficiency Peak Avg. Peak Avg. Peak Avg. Module Board 0 0 0 0 0 0 0 Shenzhen Qianghe Technology Co., Ltd. Return Loss Shenzhen Qianghe Technology Co., Ltd. 3D radiation pattern diagram XY-plane XZ-plane YZ-plane

ReportNo.:CISRR25120924901 Thetestresultsrelateonlytothetestedsamples. ThetestreportshouldnotbereproducedexceptinfullwithoutthewrittenapprovalofShenzhenBangce TestingTechnologyCo.,Ltd. Page1of41 TESTREPORT ReportNo.CISRR25120924901 ProjectNo.CISR251209249 FCCID2BDV5-SM-5050RGB-01 ApplicantShenzhenSaimingPhotoelectricTechnologyCo.,Ltd. Address Elevator3-4,5thFloor,AimeiteSciencePark,HuangfenglingIndustrial Zone,ShiyanTown,Bao'anDistrict,Shenzhen ManufacturerShenzhenSaimingPhotoelectricTechnologyCo.,Ltd. Address Elevator3-4,5thFloor,AimeiteSciencePark,HuangfenglingIndustrial Zone,ShiyanTown,Bao'anDistrict,Shenzhen ProductNameAbyssAmbientLight Trademark- Model/TypereferenceSM-5050RGB-01 ListedModel(s)- Standard 47CFRPart15.247 DateofsamplereceiptDecember12,2025 TestdateDecember12,2025toDecember16,2025 IssuedateDecember22,2025 TestresultComplied Reviewedby:LucasHuang Approvedby:HansHu ReportNo.:CISRR25120924901 Page 2 of 41 Contents 1.STANDARDANDAPPLICABLETESTMETHODS........................................................................................3 2.REPORTVERSION..........................................................................................................................................3 3.TESTDESCRIPTION.......................................................................................................................................4 4.SUMMARY........................................................................................................................................................5 4.1.ProductDescription*..................................................................................................................................5 4.2.RadioSpecificationDescription*..............................................................................................................5 4.3.ModificationofEUT.....................................................................................................................................6 4.4.Deviationfromstandards...........................................................................................................................6 4.5.TestingSite...................................................................................................................................................6 5.TESTCONFIGURATION.................................................................................................................................7 5.1.Testfrequencylist.......................................................................................................................................7 5.2.Descriptionsoftestmode...........................................................................................................................7 5.3.Testsampleinformation.............................................................................................................................7 5.4.Environmentalconditions...........................................................................................................................7 5.5.Statementofthemeasurementuncertainty.............................................................................................7 5.6.EquipmentUsedduringtheTest................................................................................................................8 6.TESTRESULTS.............................................................................................................................................10 6.1.EvaluationResults(Evaluation)...............................................................................................................10 6.1.1.AntennaRequirement............................................................................................................................10 6.2.RadioSpectrumMatterTestResults(RF)...............................................................................................11 6.2.1.ConductedEmissionatACpowerline.................................................................................................11 6.2.2.6dBBandwidth........................................................................................................................................14 6.2.3.MaximumConductedOutputPower.....................................................................................................15 6.2.4.PowerSpectralDensity..........................................................................................................................16 6.2.5.Conductedbandedgeandspuriousemission...................................................................................17 6.2.6.Radiatedbandedgeemission...............................................................................................................18 6.2.7.RadiatedSpuriousEmission(below1GHz).........................................................................................24 6.2.8.RadiatedSpuriousEmission(Above1GHz)........................................................................................28 7.APPENDIXREPORT......................................................................................................................................36 7.1.ConductedOutputPower.........................................................................................................................36 7.2.6dBBandwidth...........................................................................................................................................37 7.3.PowerSpectralDensity.............................................................................................................................38 7.4.DutyCycle..................................................................................................................................................39 7.5.ConductedSpurious&BandEdgeEmission.........................................................................................40 ReportNo.:CISRR25120924901 Page 3 o…

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ReportNo.:CISRR25120924901 Page 43 of 49 8.TESTSETUPPHOTOS ConductedEmissionatACpowerline Radiatedbandedgeemission RadiatedSpuriousEmission(Above1GHz) ReportNo.:CISRR25120924901 Page 44 of 49 RadiatedSpuriousEmission(below1GHz)