2BUXS-SAUNAsauna light

DongguanLaiguangElectronicTechnologyCo.,Ltd. CoveredEquipmentCertificationAttestationLetter 03/10/2026 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA ATTN.:ReviewingEngineer FCCID:2BUXS-SAUNA DongguanLaiguangElectronicTechnologyCo.,Ltd.(“theapplicant”)certifiesthatthe equipmentforwhichauthorizationissoughtisnot“covered”equipmentprohibitedfrom receivinganequipmentauthorizationpursuanttosection2.903oftheFCCrules. Note:Iftheequipmentforwhichtheapplicantseeksauthorizationisproducedby anyoftheentitiesidentifiedonthecurrentCoveredList,theapplicantshould includeanexplanationonwhytheequipmentisnot“covered”equipment. DongguanLaiguangElectronicTechnologyCo.,Ltd.(“theapplicant”)certifiesthat,asofthe dateofthefilingoftheapplication,theapplicantisnotidentifiedontheCoveredList(as aspecificallynamedentityoranyofitssubsidiariesoraffiliates)asanentityproducing “covered”equipment. DongguanLaiguangElectronicTechnologyCo.,Ltd. (“theapplicant”)certifiesthatthe equipmentforwhichauthorizationissoughtdoesnotincludecybersecurityoranti-virus softwareproducedorprovidedbyKasperskyLab,Inc.oranyofitssuccessorsand assignees,includingequipmentwithintegratedKasperskyLab,Inc.(oranyofits successorsandassignees)cybersecurityoranti-virussoftwarepursuanttoDA-24-886 andKDB986446D01CoveredEquipmentGuidancesectionB(2a). Signed: Printedname:JiangxiangWu Title:President CompanyName:DongguanLaiguangElectronicTechnologyCo.,Ltd. Date:03/10/2026

Dongguan Laiguang Electronic Technology Co., Ltd. * the applicant must designate a contact located in the United States for purposes of acting as the appl icant’s agent for service of process, regardless of whether the applicant is a domestic or forei gn ent ity. An applicant located in the United States may designate itself as the agent for service of process. U.S. Agent Designation for Service of Process - Certification Attestation Letter 03/10/2026 TO: Feder al Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 ATTN.: Reviewing Engineer FCC ID: 2BUXS-SAUNA FRN of applicant: 0038076923 Per section 2.911(d)(7) of the FCC rules, [ Dongguan Laiguang Electronic Technology Co., Ltd.] (“the applicant”) certifies that the equipment for which authorization is sought is designated to the following U.S. agent* for service of process: C ompany Name: FCC US Agent, LLC FCC Registration Number (FRN): 0033402884 Physical U.S. Company Address: 3722 Illinois Avenue, Saint Charles, IL 60174, USA Contact Person: Tim Payne Agent Email Address: [email protected] The abov e contact person accepts the obligation for service of process. The appl icant accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. A pplicant Signed: Agent Signed (if different from Applicant): Signed: Printed name: Jiangxiang Wu Title: President Company Name: Dongguan Laiguang Electronic Technology Co., Ltd. Date: 03/10/2026 S igned: Printed name: Tim Payne Title: President Company Name: FCC US Agent, LLC Date: 03/10/2026

DATE:03/10/2026 FederalCommunicationsCommission Authorization&EvaluationDivision 7345OaklandMillsRoad Columbia,Maryland21046 AuthoritytoActasAgent Onourbehalf,IappointShenzhenEUTestingLaboratoryLimited (101,BuildingB1,FuqiaoFourthArea,QiaotouCommunityFuhaiSubdistrictBaoan District,Shenzhen,China)(NameofAgentcompanynameandaddress)toactasour agentinthepreparationofthisapplicationforequipmentcertification.Icertifythat submitteddocumentsproperlydescribethedeviceorsystemforwhichequipment certificationissought.Ialsocertifythateachunitmanufactured,importedormarketed,as definedintheFederalCommunicationsCommission’sregulationswillhaveaffixedtoita labelidenticaltothatsubmittedforapprovalwiththisapplication. Forinstanceswhereourauthorizedagentsignstheapplicationforcertificationonour behalf,Iacknowledgethatallresponsibilityforcomplyingwiththetermsandconditions forcertification,stillresideswithDongguanLaiguangElectronicTechnologyCo.,Ltd. (Room.401,Building9,No.15LianfengYihengRoad,DatangVillage,DalingshanTown, DongguanCity,Guangdong,China)(ApplicantNameandaddress) Signed: Printedname:JiangxiangWu Title:President CompanyName:DongguanLaiguangElectronicTechnologyCo.,Ltd. Date:03/10/2026

Date03/10/2026 FederalCommunicationsCommission Authorization&EvaluationDivision 7345OaklandMillsRoad Columbia,Maryland21046 RE:LETTEROFAGENTAUTHORIZATION ToWhomItMayConcern: We,theundersigned,herebyauthorizeComplianceTesting,LLCtoactonourbehalfinallmatters relatingtoapplicationforequipmentauthorization,includingthesigningofalldocumentsrelatingto thesematters. Wealsoherebycertifythatnopartytotheapplicationauthorizedhereunderissubjecttothedenialof benefits,includingFCCbenefits,pursuanttoSection5301oftheAnti-DrugAbuseActof1988,21 U.S.C.853(a). Sincerely, Signed: Printedname:JiangxiangWu Title:President CompanyName:DongguanLaiguangElectronicTechnologyCo.,Ltd. Date:03/10/2026

DATE:03/10/2026 EquipmentAutorisationDivision FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 FCCID:2BUXS-SAUNA ProductName:saunalight RequestforShort-TermConfidentiality PursuanttoSections0.457and0.459ofthecommissionrules,andinaccordancewiththeFCCPublicnotice datedJune15,2004(DA04-1705),weherebyrequestshort-termconfidentialityforthefollowingitemspriorto marketingthedevice.: TestSetupPhotos ExternalPhotos InternalPhotos UserManual Theapplicantrequeststheexhibitsselectedaboveasshorttermconfidentialbewithheldfrompublicview foraperiodof180daysfromthedateoftheGrantofEquipmentAuthorizationandpriortomarketing.This istoavoidprematurereleaseofsensitiveinformationpriortomarketingorreleaseoftheproducttothe public. Signed: Printedname:JiangxiangWu Title:President CompanyName:DongguanLaiguangElectronicTechnologyCo.,Ltd. Date:03/10/2026

DATE03/10/2026 EquipmentAutorisationDivision FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 FCCID:___2BUXS-SAUNA______ ProductName:___saunalight___ RequestforConfidentiality PursuanttoSections0.457and0.459ofthecommission’srules,weherebyrequestthat thefollowingdocumentsbeheldconfidential: (Listherethedocumentsforwhichyouareseekingconfidentiality–forexample...)  Schematics Blockdiagram Operationdescription Thesematerialscontaintradesecretsandproprietaryinformationandarenot customarilyreleasedtothepublic.Thepublicdisclosureofthisinformationmightbe harmfultothecompanyandprovideunjustifiedbenefitstoourcompetitors. Signed: Printedname:JiangxiangWu Title:President CompanyName:DongguanLaiguangElectronicTechnologyCo.,Ltd. Date:03/10/2026

LabelLocation Label Size:50*60mm ProductName:saunalight ModelNo.:SAUNA FCCID:2BUXS-SAUNA

RFEXPOSUREEVALUATION AccordingtoFCC1.1310:Thecriterialistedinthefollowingtableshallbeusedto evaluatetheenvironmentimpactofhumanexposuretoradiofrequency(RF) RadiationasspecifiedinKDB447498D01V06and§1.1307(b) CFRTitle47§2.1091(b):(b)Forpurposesofthissection,amobiledeviceisdefined asatransmittingdevicedesignedtobeusedinotherthanfixedlocationsandto generallybeusedinsuchawaythataseparationdistanceofatleast20centimeters isnormallymaintainedbetweenthetransmitter’sradiatingstructure(s)andthebodyof theuserornearbypersons. FCCID:2BUXS-SAUNA EUTSpecification EUTSwitchBotOutdoorPan/TiltCam3K Frequencyband(Operating)WLAN:2.412GHz~2.462GHz WLAN:5.18GHz~5.24GHz WLAN:5.745GHz~5.825GHz Others:2.402GHz~2.480GHzBT DevicecategoryPortable(<20cmseparation) Mobile(>20cmseparation) Others___ ExposureclassificationOccupational/Controlledexposure(S=5mW/cm2) GeneralPopulation/Uncontrolledexposure(S=1mW/cm2) AntennadiversitySingleantenna Multipleantennas Txdiversity Rxdiversity Tx/Rxdiversity EvaluationappliedMPEEvaluation SAREvaluation LimitsforMaximumPermissibleExposure(MPE) Frequency Range(MHz) ElectricField Strength(V/m) MagneticField Strength(A/m) Power Density(mW/cm 2 ) Average Time (A)LimitsforOccupational/ControlExposures 300-1500----F/3006 1500-100000----56 (B)LimitsforGeneralPopulation/UncontrolExposures 300-1500----F/15006 1500-100000----130 Friistransmissionformula:Pd=(Pout*G)\(4*pi*R2) Where Pd=PowerdensityinmW/cm 2 Pout=outputpowertoantennainMw G=gainofantennainlinearscale Pi=3.1416 R=distancebetweenobservationpointandcenteroftheradiatorincm PdthelimitofMPE,1mW/cm2.Ifweknowthemaximumgainoftheantennaandtotal powerinputtotheantenna,throughthecalculation,wewillknowthedistancewhere theMPElimitisreached. MeasurementResult BTworstcase: Operating Mode Channel Frequency Measured Power Tuneup tolerance Max.Tune upPower Antenna Gain Powerdensity at20cm Powerdensity Limits(mW/cm 2 ) (MHz)(dBm)(dBm)(dBm)(dBi)(mW/cm 2 ) 8DPSK24021.321.32±12.322.000.00051 TestResult:Pass

TEST REPORT Report No.:8427EU120701W Applicant:Dongguan Laiguang Electronic Technology Co., Ltd. Address:Room. 401, Building 9, No. 15 Lianfeng Yiheng Road, Datang Village, Dalingshan Town, Dongguan City, Guangdong, China Product Name:sauna light Model No.:SAUNA Trademark:N/A FCC ID:2BUXS-SAUNA Test Standard(s):47 CFR Part 15.247 Test Result:Pass Date of Receipt:Jan. 07, 2026 Test Date:Jan. 08, 2026 - Jan. 20, 2026 Date of Issue:Feb. 26, 2026 ISSUED BY: SHENZHEN EU TESTING LABORATORY LIMITED Prepared by:Reviewed and Approved by: Landon Qiu/ EngineerSally Zhang/ Manager Page 2 of 116Report No.: 8427EU120701W TRF Version: A01 Revision Record Report VersionIssued DateDescriptionStatus V0Feb. 26, 2026OriginalValid Page 3 of 116Report No.: 8427EU120701W TRF Version: A01 Table of Contents 1 COVER PAGE...................................................................................................................................................1 2 GENERAL INFORMATION........................................................................................................................5 2.1 APPLICANTINFORMATION...................................................................................................................5 2.2 MANUFACTURERINFORMATION...........................................................................................................5 2.3 FACTORYINFORMATION......................................................................................................................5 2.4 GENERALDESCRIPTION OFE.U.T...................................................................................................... 5 2.5 TECHNICALINFORMATION OFE.U.T....................................................................................................6 3 TEST SUMMARY.......................................................................................................................................7 3.1 TESTSTANDARD................................................................................................................................7 3.2 TESTVERDICT................................................................................................................................... 7 3.3 TESTLABORATORY............................................................................................................................8 4 TEST CONFIGURATION...........................................................................................................................9 4.1 TESTENVIRONMENT...........................................................................................................................9 4.2 TESTEQUIPMENT...............................................................................................................................9 4.3 DESCRIPTION OFSUPPORTUNIT...................................................................................................... 11 4.4 TESTMODE..................................................................................................................................... 11 4.5 DESCRIPTION OFCALCULATION........................................................................................................11 4.5.1 Field Strength Calculation..................................................................................................11 4.5.2 Disturbance Calculation..................................................................................................... 11 4.6 MEASUREMENTUNCERTAINTY.......................................................................................................... 11 4.7 DEVIATION FROMSTANDARDS.......................................................................................................... 12 4.8 ABNORMALITIES FROMSTANDARDCONDITION..................................................................................12 5 EVALUATION RESULTS (EVALUATION).............................................................................................. 13 5.1 ANTENNA REQUIREMENT.................................................................................................................. 13 5.1.1 Test Specification...............................................................................................................13 5.1.2 Test Data............................................................................................................................13 6 RADIO SPECTRUM MATTER TEST RESULTS (RF)............................................................................ 14 6.1 CONDUCTEDEMISSION ATACPOWER LINE...................................................................................... 14 6.1.1 Test Specification...............................................................................................................14 6.1.2 E.U.T. Operation.................................................................................................................14 6.1.3 Test Setup Diagram........................................................................................................... 14 6.1.4 Test Data............................................................................................................................14 6.2 20DB BANDWIDTH........................................................................................................................... 17 6.2.1 Test Specification...............................................................................................................17 6.2.2 E.U.T. Operation.................................................................................................................17 6.2.3 Test Setup Diagram........................................................................................................... 18 6.2.4 Test Data............................................................................................................................18 6.3 MAXIMUMCONDUCTEDOUTPUTPOWER........................…

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深圳市飞易通科技有限公司 www.feasycom.com FSC-BT1026 Bluetooth antenna of PCB on-board specification 1. Index Item Content Page Remark 1 Index 1 2 Spec Drawing 2 3 Specification 2 4 Antenna On Test Board 3 5 Return Loss 3 6 Radiation Pattern 3 Document Type：2.4GHZ PCB antenna Document Version：V1.0 Release Date：2025/9/18 Testing Instrument：Ray Zone 1800 General Test Systems Inc Testing Software：GTS MaxSign-RayZone1800 Test laboratory name：Shenzhen Feasycom Co., LTD. Test date：2025/9/18 Engineer name：huangyiming Address：Rm 508, Building A, Fenghuang Zhigu, No.50, Tiezai Road, Xixiang, Baoan District, Shenzhen, 518102, China Antenna manufacturer：Shenzhen Feasycom Co., LTD. Address：Rm 508, Building A, Fenghuang Zhigu, No.50, Tiezai Road, Xixiang, Baoan District, Shenzhen, 518102, China Testing methods and testing standards: Name Parameter Method Standard no. Antenna performance Radiationeffcieney lEEE Standard Test Procedures for Antennas ANSI/IEEE Std149-2021 List of instruments and calibration dates： Equipment Manufacturer Model No. Last Cal, Due Date Network Analyzer Agilent E5071C 2025.01.20 2026.01.19 Ray Zone 1800 Ray Zone 1800 2025.01.20 2026.01.19 深圳市飞易通科技有限公司 www.feasycom.com General Test Systems Inc 2. Spec Drawing 3. Specification Product Number: 2.4GHZ coil antenna Sample Photo: A. Electrical Characteristics Frequency 2400 ~ 2500 MHz S.W.R. <=2.0 Gain 2.0 dBi 深圳市飞易通科技有限公司 www.feasycom.com Efficiency ~ 50% Polarization Linear Impedance 50 Ohm B. Material & Mechanical Characteristics Material of Radiator copper C. Environmental Operation Temperature - 40°C ~ + 85°C Storage Temperature - 40°C ~ + 105°C 4. Antenna On Test Board 5. Return Loss 深圳市飞易通科技有限公司 www.feasycom.com 6，Radiation Pattern Radiation Pattern and Gain were dependent on measurement board design. The specification of PCB antenna was measur ed based on the PCB size and installation position as shown in the below figure Test Board. Vertical Horizontal 深圳市飞易通科技有限公司 www.feasycom.com Test Result: Frequency VNA Peak Gain Efficiency 2400MHz 0.685768 40.77% 2410MHz 1.14545 47.37% 2420MHz 0.222461 40.01% 2430MHz -0.12456 33.43% 2440MHz 0.34146 37.54% 2450MHz 1.013454 41.57% 2460MHz 2.00546 50.87% 2470MHz 0.642456 41.25% 2480MHz -0.224356 37.14% 2490MHz -0.468674 33.53% 2500MHz 0.716586 40.72% 深圳市飞易通科技有限公司 www.feasycom.com 7，PatternTest photos and test configuration diagrams