2AYFR-607USG4Smart Wi-Fi wall switch

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Guangdong GDKES Electric Technology Development CO.,LTD Agent Authorization Company: Guangdong GDKES Electric Technology Development CO.,LTD Address: No. 103, Lingdong Village (Factory), No. 3, Shengping First Street, Tanzhou Town, Dagang Town, Nansha District, Guangzhou, Guangdong, China Product Name: Smart Wi-Fi wall switch Model Number(s ): KES-607US-G4, KES-607US-G1, KES-607US-G2, KES-607US-G3 Product Description: Smart Wi-Fi wall switch We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature: Date: Dec. 16, 2020 Name: Leon Li Title: Sales manager Company: Guangdong GDKES Electric Technology Development CO.,LTD

Guangdong GDKES Electric Technology Development CO.,LTD Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: Dec. 16, 2020 Subject; Request for Confidentiality FCC ID: 2AYFR-607USG4 To Whom It May Concern, Pursuant to the provisions of the Commission’s rules Title 47 Sections §0.457 and §0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Parts List Operational Description Tune-up Procedure It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: Leon Li Title: Sales manager

Annex A External Photos Report No.: HK2011273745-E Page 1 of 3 Report No.: HK2011273745-E Page 2 of 3 Report No.: HK2011273745-E Page 3 of 3

FCC ID LABEL: Ca. 5mm x 10mm Include in manual: This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Label Location FCC ID: 2AYFR-607USG4

Annex B Internal Photos Report No.: HK2011273745-E Page 1 of 4 Report No.: HK2011273745-E Page 2 of 4 2.4G WIFI Antenna Report No.: HK2011273745-E Page 3 of 4 Report No.: HK2011273745-E Page 4 of 4

MPE ESTIMATION FCC ID: 2AYFR-607USG4 1,Limit for General Population/ Uncontrolled Exposures Frequency Power density (mW/ cm 2 ) Averaging time(minutes) 300MHz----1.5GHz F/1500 30 1.5GHz---100GHz 1.0 30 Note: F= Frequency in MHz 2, Estimation Result 2.4WIFI Mode Frequency (MHz) Max PK Output power(dBm) Tune Up Power(dBm) Max Tune Up power(mW) Antenna Gain(dBi) Antenna Gain (linear) MPE ( mW/cm²) 2.4GWIFI 2437 14.41 14±1(15) 31.62 2.3 1.6982 0.01068 Note: Note: The estimation distance is 20cm Note: PK Output power= conducted power. Conducted power see the test report HK2011273745-E, antenna gain=2.3dBi when the minimum test separation distance is >20 cm, a distance of 20 cm is applied to determine RF Exposure test exclusion. The test exclusion threshold is 0.01068 mW/cm² which is< 1.0mW/cm², RF Exposure testing is not required. -------The End-------

Report No.: HK2011273745-E FCC TEST REPORT Test report On Behalf of Guangdong GDKES Electric Technology Development CO.,LTD For Smart Wi-Fi wall switch Model No.: KES-607US-G4, KES-607US-G1, KES-607US-G2, KES-607US-G3 FCC ID: 2AYFR-607USG4 Prepared for : Guangdong GDKES Electric Technology Development CO.,LTD No. 103, Lingdong Village (Factory), No. 3, Shengping First Street, Tanzhou Town, Dagang Town, Nansha District, Guangzhou, Guangdong, China Prepared By : Shenzhen HUAK Testing Technology Co., Ltd. 1F, B2 Building, JunfengZhongchengZhizao Innovation Park, Fuhai Street, Bao'an District, Shenzhen City, China Date of Test: Dec. 02, 2020 ~ Dec. 09, 2020 Date of Report: Dec. 09, 2020 Report Number: HK2011273745-E Report No.: HK2011273745-E Page 2 of 69 TEST RESULT CERTIFICATION Applicant’s name .................. : Guangdong GDKES Electric Technology Development CO.,LTD Address .................................. : No. 103, Lingdong Village (Factory), No. 3, Shengping First Street, Tanzhou Town, Dagang Town, Nansha District, Guangzhou, Guangdong, China Manufacture's Name ............ : Guangdong GDKES Electric Technology Development CO.,LTD Address .................................. : No. 103, Lingdong Village (Factory), No. 3, Shengping First Street, Tanzhou Town, Dagang Town, Nansha District, Guangzhou, Guangdong, China Product description Trade Mark: GDKES Product name ............................ : Smart Wi-Fi wall switch Model and/or type reference : KES-607US-G4, KES-607US-G1, KES-607US-G2, KES-607US-G3 Standards .............................. : FCC Rules and Regulations Part 15 Subpart C Section 15.247 ANSI C63.10: 2013 This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen HUAK Testing Technology Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen HUAK Testing Technology Co., Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Date of Test ............................................ : Date (s) of performance of tests ............. : Dec. 02, 2020 ~ Dec. 09, 2020 Date of Issue .......................................... : Dec. 09, 2020 Test Result .............................................. : Pass Testing Engineer : (Gary Qian) Technical Manager : (Eden Hu) Authorized Signatory : (Jason Zhou) Report No.: HK2011273745-E Page 3 of 69 TABLE OF CONTENTS 1. Test Result Summary ............................................................................... 5 1.1. TEST PROCEDURES AND RESULTS ............................................................................................... 5 1.2. TEST FACILITY .................................................................................................................................. 5 1.3. MEASUREMENT UNCERTAINTY ............................................................................................................... 6 2. EUT Description ........................................................................................ 7 2.1. GENERAL DESCRIPTION OF EUT ................................................................................................... 7 2.2. CARRIER FREQUENCY OF CHANNELS ..................................................................................................... 8 2.3. OPERATION OF EUT DURING TESTING .................................................................................................... 8 2.4. DESCRIPTION OF TEST SETUP ....................................................................................................... 9 3. Genera Information ................................................................................. 10 3.1. TEST ENVIRONMENT AND MODE ............................................................................................................ 10 3.2. DESCRIPTION OF SUPPORT UNITS ........................................................................................................ 11 4. Test Results and Measurement Data .................................................... 12 4.1. CONDUCTED EMISSION ........................................................................................................................ 12 4.2. TEST RESULT ...................................................................................................................................... 14 4.3. MAXIMUM CONDUCTED OUTPUT POWER .............................................................................................. 16 4.4. EMISSION BANDWIDTH ......................................................................................................................... 18 4.5. POWER SPECTRAL DENSITY ................................................................................................................ 24 4.6. CONDUCTED BAND EDGE AND SPURIOUS EMISSION MEASUREMENT ..................................................... 30 4.7. RADIATED SPURIOUS EMISSION MEASUREMENT ................................................................................... 40 4.8. PHOTOGRAPH OF TEST ................................................................................................................. 67 4.9. PHOTOS OF THE EUT ..................................................................................................................... 69 Report No.: HK2011273745-E Page 4 of 69 ** Modifited History ** Revison Description Issued Data Remark Revsion 1.0 Initial Test Report Release 2020/12/09 Jason Zhou Report No.: HK2011273745-E Page 5 of 69 1. Test Result Summary 1.1. TEST PROCEDURES AND RESULTS Requirement CFR 47 Section Result Antenna requirement §15.203/§15.247 (c) PASS AC Power Line Conducted Emission §15.207 PASS Conducted Peak Output Power §15.247 (b)(3) PASS 6dB Emission Bandwidth §15.247 (a)(2) PASS Power Spectral Density §15.247 (e) PASS Band Edge §15.247(d) PASS Spurious Emi…

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Test Model：KES-607US-G4 Radiated Emission Conducted Emission