2ATEV-LB4E26FSmart Bulb with Bluetooth

FCC Radiation Exposure Statement: This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body. NOTE 1: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: - Reorient or relocate the receiving antenna. - Increase the separation between the equipment and receiver. -Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. -Consult the dealer or an experienced radio/TV technician for help. NOTE 2: Any changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

HangzhouBroadLinkTechnologyCo.,Ltd. BuildingC,57Jiang'erRoad,Binjiang,Hangzhou310052,China ConfidentialityRequest Date:2022-12-14 FEDERALCOMMUNICATIONSCOMMISSION AUTHORIZATIONANDEVALUATIONDIVISION 7435OAKLANDMILLSROAD COLUMBIA,MD21046 SUBJECT:FCCApplicationforFCCID:2ATEV-LB4E26F Towhomitmayconcern, PursuanttotheprovisionsoftheCommission’srulesTitle47Sections§0.457and§0.459,we arerequestingtheCommissiontowithholdthefollowingattachment(s)asconfidential documentsfrompublicdisclosureindefinitely. ☒ BlockDiagram ☐ Tune-UpInformation ☒ OperationalDescription ☐ SecurityInformation ☒ Schematics ☐ SoftwareDefinedRadio(SDR)Information ☐ PartsList Theabovematerialscontaintradesecretsandproprietaryinformationnotcustomarilyreleased tothepublic.Thepublicdisclosureofthesematerialsmaybeharmfultotheapplicantand provideunjustifiedbenefitstoitscompetitors. Inadditionaltoabovementioneddocuments,inordertocomplywiththemarketingregulationsin Title47CFR§2.803andtheimportationrulesinTitle47CFR§2.1204,whileensuringthat businesssensitiveinformationremainsconfidentialuntiltheactualmarketingofnewly authorizeddevices,werequestShortTermConfidentialityofthefollowingattachment(s); ☐ ExternalPhotos ☐ TestSetupPhotos ☐ InternalPhotos ☐ UserManual ☐For45days,pursuanttoPublicNoticeDA04-1705. or ☐For180dayspursuanttoKDB726920D01. TheapplicantunderstandsthatpursuanttoSection0.457oftheRules,disclosureofthis applicationandallaccompanyingdocumentationwillnotbemadebeforethedateoftheGrant HangzhouBroadLinkTechnologyCo.,Ltd. BuildingC,57Jiang'erRoad,Binjiang,Hangzhou310052,China forthisapplication. Sincerely, Signatory [MengjiaoYan,PM]

HangzhouBroadLinkTechnologyCo.,Ltd BuildingC,57Jiang'erRoad,Binjiang,Hangzhou310052,China POWEROFATTORNEY Date:2022-12-14 FEDERALCOMMUNICATIONSCOMMISSION AUTHORIZATIONANDEVALUATIONDIVISION 7435OAKLANDMILLSROAD COLUMBIA,MD21046 SUBJECT:FCCApplicationforFCCID:2ATEV-LB4E26F ToWhomItMayConcern: We,theundersigned,herebyauthorizeWaltekTestingGroup(Shenzhen)Co.,Ltd.JandySo onourbehalf,toapplytotheFederalCommunicationsCommissiononourequipment.Any andallactscarriedoutbyWaltekTestingGroup(Shenzhen)Co.,Ltd.JandySoonourbehalf shallhavethesameeffectasactsofourown. ThisistoadvisethatweareinfullcompliancewiththeAnti-DrugAbuseAct.We,Hangzhou BroadLinkTechnologyCo.,Ltd.arenotsubjecttoadenialoffederalbenefitspursuantto Section5301oftheAnti-DrugActof1988,21USC853a,andnopartytotheapplicationis subjecttoadenialoffederalbenefitspursuanttothatsection. Sincerely, Signatory [MengjiaoYan,PM]

HangzhouBroadLinkTechnologyCo.,Ltd. BuildingC,57Jiang'erRoad,Binjiang,Hangzhou310052,China Supplier’sDeclarationOfConformity fortheFCCSDoCProcedure ThefollowingEquipmentadaptFCCSDoCProcedureaccordingtoFCCpart2.906: ProductName:SmartBulb BrandNam:/ ModelNumber:LB4E26F ReportNumber:WTX22X11239474W002 It’sherewithconfirmedtocomplywiththerequirementsofFCCPart15Rules. Operationissubjecttothefollowingtwoconditions: (1)Thisdevicemaynotcauseharmfulinterference,and (2)Thisdevicemustacceptanyinterferencereceived,includinginterferencethatmaycause undesiredoperation. Itisunderstoodthateachunitmarketedisidenticaltothedeviceastested,andanychanges tothe devicethatcouldadverselyaffecttheemissioncharacteristicswillrequireretest. Thefollowingimporter/responsiblepartyinUnitedStates: NotAvailableatCertificationStage CompanyName:N/A CompanyAddress:N/A Telephone:N/A Fax:N/A Personisresponsibleformarkingthisdeclaration: MengjiaoYan Name(Fullname) PM Position/Title 2022-12-15 LegalSignatureDate

Reference No.: WTX22X11239474W001 Page 2 of 11 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn EXHIBIT 2 - EUT EXTERNAL PHOTOGRAPHS EUT View 1 EUT View 2 Reference No.: WTX22X11239474W001 Page 3 of 11 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn EUT View 3 EUT View 4 Reference No.: WTX22X11239474W001 Page 4 of 11 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn EUT View 5 EUT View 6

Reference No.: WTX22X11239474W001 Page 5 of 11 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn EXHIBIT 3 - EUT INTERNAL PHOTOGRAPHS EUT Housing and Board View 1 Solder Board-Component View 1 Reference No.: WTX22X11239474W001 Page 6 of 11 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Solder Board-Component View 2 Solder Board-Component View 3 Reference No.: WTX22X11239474W001 Page 7 of 11 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Solder Board-Component View 4 Solder Board-Component View 5 Reference No.: WTX22X11239474W001 Page 8 of 11 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Antenna View

1. RF Exposure Requirements 1.1 General Information Client Information Applicant: Hangzhou BroadLink Technology Co., Ltd. Address of applicant: Building C, 57 Jiang’er Road, Binjiang, Hangzhou, 310052, P.R.China Manufacturer: Hangzhou BroadLink Technology Co., Ltd. Address of manufacturer: Building C, 57 Jiang’er Road, Binjiang, Hangzhou, 310052, P.R.China General Description of EUT: Product Name: Smart Bulb Trade Name / Model No.: LB4E26F Adding Model(s): LB4E27F, LBNE26X, LBNE27X; (N=1, 2, 3..., X=A, B, C...) Rated Voltage: AC 110-130V Power Adapter: / FCC ID: 2ATEV-LB4E26F Equipment Type: Fixed device Technical Characteristics of EUT: Bluetooth Bluetooth Version: V5.0 (BLE mode) Frequency Range: 2402-2480MHz RF Output Power: 3.23dBm (Conducted) Data Rate: 1Mbps Modulation: GFSK Quantity of Channels: 40 Channel Separation: 2MHz Type of Antenna: PCB Antenna Antenna Gain: 2.79dBi 1.2 RF Exposure Exemption According to §1.1307(b)(3) and 447498 D04 Interim General RF Exposure Guidance v01, system operating under the provisions of this section shall be operating in a manner that the public is not exposed to radio frequency energy level in excess limit for maximum permissible exposure. Option A: FCC Rule Part 1.1307 (b)(3)(i)(A):The available maximum time-averaged power is no more than 1mW, regardless of separation distance. Option B: FCC Rule Part 1.1307 (b)(3)(i)(B): The available maximum time-averaged power or effective radiated power (ERP), whichever is greater, is less than or equal to the threshold P th (mW) described in the following formula. P th is given by: Option C: FCC Rule Part 1.1307 (b)(3)(i)(C): The minimum separation distance (R in meters) from the body of a nearby person for the frequency (f in MHz) at which the source operates, the ERP (watts) is no more than the calculated value prescribed for that frequency. R must be at least λ/2π, where λ is the free-space operating wavelength in meters. Single RF Sources Subject to Routine Environmental Evaluation RF Source frequency (MHz) Threshold ERP (watts) 0.3-1.34 1,920 R 2 1.34-30 3,450 R 2 /f 2 30-300 3.83 R 2 300-1,500 0.0128 R 2 f 1,500-100,000 19.2R 2 For Multiple RF sources: FCC Rule Part 1.1307(b)(3)(ii): (A) The available maximum time-averaged power of each source is no more than 1 mW and there is a separation distance of two centimeters between any portion of a radiating structure operating and the nearest portion of any other radiating structure in the same device, except if the sum of multiple sources is less than 1 mW during the time-averaging period, in which case they may be treated as a single source (separation is not required). (B) In the case of fixed RF sources operating in the same time-averaging period, or of multiple mobile or portable RF sources within a device operating in the same time averaging period, if the sum of the fractional contributions to the applicable thresholds is less than or equal to 1 as indicated in the following equation. 1.3 Calculated Result Radio Access Technology Min. Frequency Max. Output Power Max. Tune-Up Output Power Antenna Gain Duty Cycle Tune-Up EIRP (MHz) (dBm) (dBm) (dBi) (%) (dBm) Bluetooth 2402 3.23 4.0 2.79 100 6.79 Frequency Option Min. Distance Tune-Up ERP Exposure Limit Ratio Result (MHz) (cm) (dBm) (mW) (mW) Pass/Fail 2402 C 20.00 4.64 2.91 768.00 0.01 Pass Note: 1. ERP=EIRP-2.15dB; EIRP= Output Power + Antenna gain 2. Option A, B and C refers as clause 1.2. 3. For option B, Pth(mW) convert to Exposure Limit(mW); For option C, ERP(W) convert to Exposure Limit(mW). 4. Ratio= Tune-Up ERP(mW)/ Exposure Limit (mW) Mode for Simultaneous Multi-band Transmission: Radio Access Technology Ratio 1 Ratio 2 Simultaneous Ratio Limit Result Pass/Fail -- -- -- -- -- -- Result: Pass

ReportNo.:RFI-LAB-RF-202212-LL04 QP030-E41 Page1of10 TestingReport CustomerName:HangzhouBroadLinkTechnologyCo.,Ltd ProductName:BTModule SampleModel:BL3409-P ReferenceStandard:GB/T9410-2008;ANSI/IEEEStd149-1979 IssueDate:2022.12.6 Engineer:Date: Auditor:Date: Approver:Date: ReportNo.:RFI-LAB-RF-202212-LL04 QP030-E41 Page2of10 Version VersionNo.DateDescriptionFormulateApproval A02022.12.6Forthefirsttime,formulateJacksonEason Contents 1.GeneralInformation.........................................................................................................................3 1.1Generalinformationoftestinginstitutions...........................................................................3 1.2Testingprinciple...................................................................................................................3 1.3Testequipment......................................................................................................................4 1.4Testenvironment...................................................................................................................4 1.5Statement..............................................................................................................................4 2.SampleInformation.........................................................................................................................5 2.1Clientinformation.................................................................................................................5 2.2DescriptionofEUT(S)..........................................................................................................5 2.3EUTappearance....................................................................................................................6 2.4EUTsetupphotooffreespaceOTAtesting.........................................................................7 3.TestResults......................................................................................................................................8 3.1Teststandard.........................................................................................................................8 3.2Testuncertainty.....................................................................................................................8 3.3Testdata................................................................................................................................8 3.3.1Typicalfreespaceefficiencyandgain......................................................................8 3.3.2Typicalfreespaceradiationpattern...........................................................................9 （Thefollowingisblank）..............................................................................................................10 ReportNo.:RFI-LAB-RF-202212-LL04 QP030-E41 Page3of10 1.GeneralInformation 1.1Generalinformationoftestinginstitutions Name ShenzhenRFI-LABCommunicationTechnologyCo.,Ltd. Address 10/FA,LingyunBld,LiufangRoad,BaoanDistrict,Shenzhen Tel 13682621346 E-mail [email protected] Equipment AlltheequipmentusedinthereportisfixedinZoneB,WestSideof1/F,Building1, TingweiIndustrialPark,No.6LiufangRoad,Bao'anDistrict,Shenzhen 1.2Testingprinciple ReportNo.:RFI-LAB-RF-202212-LL04 QP030-E41 Page4of10 1.3Testequipment EquipmentModelNo.SerialNo.Manufacturer Calibration date Next calibration date OTATest System RayZone-5000 RFI-LAB-RF -D00 GTS2021.3.152023.3.14 Network Analyzer E5071C RFI-LAB-RF -D01 KEYSIGHT2022.5.132023.5.12 1.4Testenvironment Temperature 23.4°C Humidity 59%RH Pressure 100.23kPa 1.5Statement (1)Thetestresultsinthereportareonlyapplicabletothetestedsamplesandthetestedsamples workundertheenvironmentdescribedinthereport. (2)OnlyShenzhenRFI-LABCommunicationTechnologyCo.,Ltd.havetherighttomodifythe report,andthemodificationinformationshallbeannotatedintherevisionform. (3)Anyobjectiontothisreportshallberaisedwithin30daysafterformalconfirmationofthe report. (4)Thisreportisinvalidifthereisanyevidencethatthesampleinformationprovidedisfalsified. (5)Thereportisinvalidwithoutthesignatureoftheauditorandapprover. ReportNo.:RFI-LAB-RF-202212-LL04 QP030-E41 Page5of10 2.SampleInformation 2.1Clientinformation Name HangzhouBroadLinkTechnologyCo.,Ltd Address / Contacts Mengjiao.yan Tel 18058715209 E-mail [email protected] 2.2DescriptionofEUT(S) ProductName BTModule SampleModel BL3409-P Size / SerialNo. / TestItem Antennagain;Efficiency;Radiationpattern FrequencyRange 2400-2500MHz ReceivedDate 2022.12.5 TestDate 2022.12.5 Remark ThelengthoftheRFcableis90mm ReportNo.:RFI-LAB-RF-202212-LL04 QP030-E41 Page6of10 2.3EUTappearance ReportNo.:RFI-LAB-RF-202212-LL04 QP030-E41 Page7of10 2.4 EUTsetupphotooffreespaceOTAtesting Planform Frontview ReportNo.:RFI-LAB-RF-202212-LL04 QP030-E41 Page8of10 3.TestResults 3.1Teststandard NameParameterMethodStandardno. Mobile communication antenna Antennagain Genericspecification forantennasusedinthe mobilecommunications GB/T 9410-2008 Radiationpattern Antenna Radiationefficiency IEEEStandardTest ProceduresforAntennas ANSI/IEEEStd 149-1979 Gainanddirectivity 3.2Testuncertainty TheuncertaintywascalculatedonthebasisoftheGUMpublishedbyISO,usingthe inclusionfactorofK=2andthe95%confidenceleveltoexpresstheextended uncertainty. ItemUncertainty Antennagain±0.72dB Radiationefficiency±0.72dB 3.3Testdata 3.3.1Typicalfreespaceefficiencyandgain Frequency/MHz 24002410242024302440245024602470248024902500 PeakGain/dBi 2.162.382.472.472.652.792.772.772.752.632.48 Efficiency/% 21.6622.6823.2824.0625.2526.5426.8827.5227.7627.2726.63 ReportNo.:RFI-LAB-RF-202212-LL04 QP030-E41 Page9of10 3.3.2Typicalfreespaceradiationpattern (1)X-ZPlane: (2)Y-ZPlane: ReportNo.:RFI-LAB-RF-202212-LL04 QP030-E41 Page10of10 (3)X-YPlane: (4)TypicalFreeSpace3DRadiationPatternat2.45GHz: -------------------------------------------------End------------------------------------------------ （Thefollowingisblank）

Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Page 1 of 38 TEST REPORT Reference No. .................... : WTX22X11239474W001 FCC ID ................................ : 2ATEV-LB4E26F Applicant ........................... : Hangzhou BroadLink Technology Co., Ltd. Address.............................. : Building C, 57 Jiang’er Road, Binjiang, Hangzhou, 310052, P.R.China Manufacturer ..................... : The same as Applicant Address.............................. : The same as Applicant Product Name ................... : Smart Bulb Model No.. .......................... : LB4E26F Standards .......................... : FCC Part 15.247 Date of Receipt sample .... : 2022-11-28 Date of Test........................ : 2022-11-28 to 2022-12-13 Date of Issue ..................... : 2022-12-13 Test Report Form No. ....... : WTX_Part 15_247W Test Result ......................... : Pass Remarks: The results shown in this test report refer only to the sample(s) tested, this test report cannot be reproduced, except in full, without prior written permission of the company. The report would be invalid without specific stamp of test institute and the signatures of approver. Prepared By: Waltek Testing Group (Shenzhen) Co., Ltd. Address: 1/F., Room 101, Building 1, Hongwei Industrial Park, Liuxian 2nd Road, Block 70 Bao'an District, Shenzhen, Guangdong, China Tel.: +86-755-33663308 Fax.: +86-755-33663309 Email: [email protected] Tested by: Approved by: Dashan Chen Silin Chen Reference No.: WTX22X11239474W001 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Page 2 of 38 TABLE OF CONTENTS 1. GENERAL INFORMATION ...................................................................................................................................4 1.1 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) .........................................................................4 1.2 TEST STANDARDS .................................................................................................................................................5 1.3 TEST METHODOLOGY ...........................................................................................................................................5 1.4 TEST FACILITY ......................................................................................................................................................5 1.5 EUT SETUP AND TEST MODE ..............................................................................................................................6 1.6 MEASUREMENT UNCERTAINTY .............................................................................................................................7 1.7 TEST EQUIPMENT LIST AND DETAILS ...................................................................................................................8 2. SUMMARY OF TEST RESULTS ......................................................................................................................... 11 3. ANTENNA REQUIREMENT ................................................................................................................................ 12 3.1 STANDARD APPLICABLE ..................................................................................................................................... 12 3.2 EVALUATION INFORMATION ................................................................................................................................ 12 4. POWER SPECTRAL DENSITY ........................................................................................................................... 13 4.1 STANDARD APPLICABLE ..................................................................................................................................... 13 4.2 TEST SETUP BLOCK DIAGRAM ........................................................................................................................... 13 4.3 TEST PROCEDURE .............................................................................................................................................. 13 4.4 SUMMARY OF TEST RESULTS/PLOTS ................................................................................................................. 13 5. DTS BANDWIDTH ................................................................................................................................................. 14 5.1 STANDARD APPLICABLE ..................................................................................................................................... 14 5.2 TEST SETUP BLOCK DIAGRAM ........................................................................................................................... 14 5.3 TEST PROCEDURE .............................................................................................................................................. 14 5.4 SUMMARY OF TEST RESULTS/PLOTS ................................................................................................................. 14 6. RF OUTPUT POWER ............................................................................................................................................ 15 6.1 STANDARD APPLICABLE ..................................................................................................................................... 15 6.2 TEST SETUP BLOCK DIAGRAM ........................................................................................................................... 15 6.3 TEST PROCEDURE .............................................................................................................................................. 15 6.4 SUMMARY OF TEST RESULTS/PLOTS ................................................................................................................. 15 7. FIELD STRENGTH OF SPURIOUS EMISSIONS .....................................................................…

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Reference No.: WTX22X11239474W001 Page 9 of 11 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn EXHIBIT 4 - TEST SETUP PHOTOGRAPHS Conducted Emission Test Setup Radiation Emission Test Setup (Below 30MHz) Reference No.: WTX22X11239474W001 Page 10 of 11 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Radiation Emission Test Setup (30MHz to 1GHz) Radiation Emission Test Setup (1GHz to 18GHz) Reference No.: WTX22X11239474W001 Page 11 of 11 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Radiation Emission Test Setup (Above 18GHz) ***** END OF REPORT *****