2A7WU-D53515Floor Lamp

Rev 1/26/2023 (SHENZHEN DAYBETTER OPTO-ELECTRONICS CO.,LTD) Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 11-19-2025 Ref: Attestation Statements Part 2.911(d)(5)(i) Filing FCC ID: 2A7WU-D53515 [SHENZHEN DAYBETTER OPTO-ELECTRONICS CO.,LTD] (“the applicant”) certifies that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. [SHENZHEN DAYBETTER OPTO-ELECTRONICS CO.,LTD] (“the applicant”) certifies that the equipment for which authorization is sought does not include cybersecurity or anti-virus software produced or provided by Kaspersky Lab, Inc. or any of its successors and assignees, including equipment with integrated Kaspersky Lab, Inc. (or any of its successors and assignees) cybersecurity or anti-virus software pursuant to DA-24-886 and KDB 986446 D01 Covered Equipment Guidance section B(2a). Device is inherently compliant based on hardware limitations or software controls. or A Software Bill of Materials (SBOM) is provided to the TCB for review, and The end-user or third parties cannot install additional software on this device. Sincerely, (Applicant signature) (Applicant printed name) WANG NING Rev 1/26/2023 (SHENZHEN DAYBETTER OPTO-ELECTRONICS CO.,LTD) Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 11-19-2025 Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing FCC ID: 2A7WU-D53515 [SHENZHEN DAYBETTER OPTO-ELECTRONICS CO.,LTD] (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List (as a specifically named entity or any of its subsidiaries or affiliates) as an entity producing “covered” equipment. Sincerely, (Applicant signature) (Applicant printed name) WANG NING

SHENZHEN DAYBETTER OPTO-ELECTRONICS CO.,LTD Date: 2025-11-19 To: Federal Communications Commission 7435 Oakland Mills Road Columbia, MD FCC ID: 2A7WU-D53515 To Whom It May Concern: This letter is to ascertain thatSHENZHEN DAYBETTER OPTO-ELECTRONICS CO.,LTD/ Floor 4, Building 2, Antuoshan High-tech Park, No.59 Xinsha Road, Shajing Town, Baoan District, Shenzhen EUT：Floor Lamp MODEL No.: J5FLF111T11, J5FLF111T01, J5FLF211T11, J5FLF211T01 Has been the units used for conducting FCC compliance testing, the SDoC part Have be tested by EMTEK (SHENZHEN) CO., LTD. If you have any question or concerns, pls. contact us. Sincerely, Client’s signature ： Client’s name / title ：WANG NING Contact information / address: SHENZHEN DAYBETTER OPTO-ELECTRONICS CO.,LTD /Floor 4, Building 2, Antuoshan High-tech Park, No.59 Xinsha Road, Shajing Town, Baoan District, Shenzhen

SHENZHEN DAYBETTER OPTO-ELECTRONICS CO.,LTD U.S. Agent Designation for Service of Process - Certification Attestation Letter 11/19/2025 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Ref: Attestation Statements Part 2.911(d)(7) Filing FCC ID: 2A7WU-D53515 Applicant FRN: 0032642480 [SHENZHEN DAYBETTER OPTO-ELECTRONICS CO.,LTD] (“the applicant”) certifies that, as of the date of the filing of the application, [Global Product Services and Consultation LLC] i s our designated U.S. agent for service of process for the above referenced FCC ID. [SHENZHEN DAYBETTER OPTO-ELECTRONICS CO.,LTD] 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. [Global Product Services and Consultation LLC] accepts, as of the date of the filing of the application, the obligation of the designated U.S. agent for service of process for the above referenced FCC ID. Designated U.S. Agent Information: Company Name: Global Product Services and Consultation LLC FCC Registration Number (FRN): 0033406703 Physical U.S. Company Address: 328 W Palm Ave. Monrovia, CA91016 Contact Person: Michael Chan CP: 626-366-4358 Agent Email Address: [email protected] Sincerely, Company: SHENZHEN DAYBETTER OPTO- ELECTRONICS CO.,LTD Company Representative: WANG NING Title: Manager Signature: Designated Agent: [Global Product Services and Consultation LLC] Designated Agent Representative: [Michael Chan] Title: [Technical Director] Signature: Date : 11/25/2025 SC5119834

Rev 11/20/07 SHENZHEN DAYBETTER OPTO-ELECTRONICS CO.,LTD Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: 2A7WU-D53515 Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request confidential treatment of information accompanying this application as outlined below: Exhibit Type File Name Block Diagram, Schematics, Operational Description, Block Diagram, Schematics, Operational Description, The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. Client’s name / title ：WANG NING Contact information / address: SHENZHEN DAYBETTER OPTO-ELECTRONICS CO.,LTD /Floor 4, Building 2, Antuoshan High-tech Park, No.59 Xinsha Road, Shajing Town, Baoan District, Shenzhen7-24-2025

SHENZHEN DAYBETTER OPTO-ELECTRONICS CO.,LTD Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Date: 2025-11-19 SUBJECT: FCC Application for FCC ID: 2A7WU-D53515 To Whom It May Concern: We, the undersigned, hereby authorize Lisa Wangat EMTEK (SHENZHEN) CO., LTD.on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out byEMTEK (SHENZHEN) CO., LTD.on our behalf shall have the same effect as acts of our own. This is to advise that we are in full compliance with the Anti- Drug Abuse Act. We, the applicant, are not subject to a denial of federal benefits pursuant to Section 5301 of the Anti-Drug Act of 1988, 21 USC853a, and no party to the application is subject to a denial of federal benefits pursuant to that section. Regards, Client’s name / title ：WANG NING Contact information / address: SHENZHEN DAYBETTER OPTO-ELECTRONICS CO.,LTD /Floor 4, Building 2, Antuoshan High-tech Park, No.59 Xinsha Road, Shajing Town, Baoan District, Shenzhen7- 24-2025

SHENZHEN DAYBETTER OPTO-ELECTRONICS CO.,LTD Declaration on model difference We the undersigned hereby confirm that any of our production units bearing the following model numbers are identical in circuitry and electrical, mechanical and physical construction; the only differences are the model name and the color of appearance for trading purpose. FCC ID: 2A7WU-D53515 Production name Trade name Model no. Floor Lamp N/A J5FLF111T11, J5FLF111T01, J5FLF211T11, J5FLF211T01 Confirmed by SHENZHEN DAYBETTER OPTO-ELECTRONICS CO.,LTD WANG NING SHENZHEN DAYBETTER OPTO-ELECTRONICS CO.,LTD Date: 2025-11-19

EUT EXTERNAL PHOTOGRAPHS ----------------The end----------------

EUT INTERNAL PHOTOGRAPHS ----------------The end---------------- Antenna

FCC ID : 2A7WU-D53515 RF EXPOSURE EVALUATION According to FCC 1.1310: The criteria listed in the following table shall be used to evaluate the environment impact of human exposure to radio frequency (RF) Radiation as specified in §1.1307(b) Limits for Maximum Permissible Exposure (MPE) Frequency Range(MHz) Electric Field Strength(V/m) Magnetic Field Strength(A/m) Power Density(mW/cm 2 ) Average Time (A) Limits for Occupational/Control Exposures 300-1500 -- -- F/300 6 1500- 100000 -- -- 5 6 (B) Limits for General Population/Uncontrol Exposures 300-1500 -- -- F/1500 6 1500- 100000 -- -- 1 30 11.1 Friis transmission formula: Pd= (Pout*G)\ (4*pi*R 2 ) Where Pd= Power density in mW/cm 2 Pout=output power to antenna in mW G= Numeric gain of the antenna relative to isotropic antenna Pi=3.1416 R= distance between observation point and center of the radiator in cm Pd the limit of MPE, 1mW/cm 2 ,If we know the maximum gain of the nd total power input to the antenna, through the calculation, we will know the distance where the MPE limit is reached. RF Exposure Information: The radiated output power of this device meets the limits of FCC/IC radio frequency exposure limits.This device should be operated with a minimum separation distance of 20cm (8 inches) between the equipment and a person's body. 11.2 Measurement Result BLE Antenna gain: 2.5 dBi Measured power (dBm) Tune-up power (dBm) Max tune-up power (dBm) Antenna Gain Numeric Evaluation result (mW/cm2 ) Power density Limits (mW/cm2 ) -3.42 -4.0 to 0 0 1.78 0.00035 1

2.4G-2.48G frequency bandOn the pcb boardPIFA Antenna test report SPECIFICATIONS Frequency（MHz）2400-2480 Peak Gain（dBi）2.499 Average Gain（dBi）＞-4 VSWR＜3.2 Impedance（Ω）50Ω Antenna TypePlannar Inverted F Antenna on board PolarizationLinear testing environment ： China Science and technology darkroom test system Z X Y Antenna physical and physical dimensions AntennapassivitySparameter： VSWR 、 ReturnLossandsmithchart Antennaefficiencyandgain Frequency（MHz）Gain（dBi）Effciency（%）AverageGain（dBi）Efficiency（dB） 24001.43359.329%-2.717-2.267 24100.92751.861%-3.416-2.852 24200.82952.112%-3.166-2.831 24300.88149.299%-3.258-3.072 24401.19250.672%-3.144-2.952 24501.68853.067%-2.735-2.752 24602.19459.423%-2.276-2.260 24702.11856.680%-2.438-2.466 24802.49961.727%-2.112-2.095 Average1.52954.908%-2.806-2.616 Peak2.49961.727%-2.112-2.095 RF2440MHz2D-ThetaPattern RF2440MHz2D-PhiPattern RF2440MHz3D-HorizontalPattern RF2440MHz3D-VerticalPattern 2440MHz3D-TotalPattern

Report No. ENS2509300131W00101R Page 1 of 53 Ver.1.0 TEST REPORT Product Name : Floor Lamp Model Number : J5FLF111T11, J5FLF111T01, J5FLF211T11, J5FLF211T01 FCC ID : 2A7WU-D53515 Prepared for : SHENZHEN DAYBETTER OPTO-ELECTRONICS CO.,LTD Address : Floor 4, Building 2, Antuoshan High-tech Park, No.59 Xinsha Road, Shajing Town, Baoan District, Shenzhen Prepared by : EMTEK (SHENZHEN) CO., LTD. Address : Building 69, Majialong Industry Zone, Nanshan District, Shenzhen, Guangdong, China Tel: (0755) 26954280 Fax: (0755) 26954282 Report Number : ENS2509300131W00101R Date(s) of Tests : October 9, 2025 to November 3, 2025 Date of issue : November 5, 2025 $二维码$ Report No. ENS2509300131W00101R Page 2 of 53 Ver.1.0 Table of Contents 1 TEST RESULT CERTIFICATION ..................................................................................................................... 3 2 EUT TECHNICAL DESCRIPTION ................................................................................................................... 5 3 SUMMARY OF TEST RESULT ......................................................................................................................... 6 4 TEST METHODOLOGY .................................................................................................................................... 7 4.1 GENERAL DESCRIPTION OF APPLIED STANDARDS ............................................................................. 7 4.2 MEASUREMENT EQUIPMENT USED ........................................................................................................ 7 4.3 DESCRIPTION OF TEST MODES ................................................................................................................. 8 5 FACILITIES AND ACCREDITATIONS ........................................................................................................... 9 5.1 FACILITIES .................................................................................................................................................... 9 5.2 EQUIPMENT .................................................................................................................................................. 9 5.3 LABORATORY ACCREDITATIONS AND LISTINGS ................................................................................. 9 6 TEST SYSTEM UNCERTAINTY ......................................................................................................................10 7 SETUP OF EQUIPMENT UNDER TEST ......................................................................................................... 11 7.1 RADIO FREQUENCY TEST SETUP 1 ......................................................................................................... 11 7.2 RADIO FREQUENCY TEST SETUP 2 ......................................................................................................... 11 7.3 CONDUCTED EMISSION TEST SETUP .....................................................................................................14 7.4 BLOCK DIAGRAM CONFIGURATION OF TEST SYSTEM .....................................................................15 7.5 SUPPORT EQUIPMENT ...............................................................................................................................15 8 TEST REQUIREMENTS ...................................................................................................................................16 8.1 DTS 6DB BANDWIDTH ...............................................................................................................................16 8.2 DTS 99%BANDWIDTH ................................................................................................................................19 8.3 MAXIMUM PEAK CONDUCTED OUTPUT POWER ................................................................................22 8.4 MAXIMUM POWER SPECTRAL DENSITY ...............................................................................................25 8.5 UNWANTED EMISSIONS IN NON-RESTRICTED FREQUENCY BANDS .............................................28 8.6 RADIATED SPURIOUS EMISSION .............................................................................................................36 8.7 CONDUCTED EMISSIONS TEST ................................................................................................................48 8.8 ANTENNA APPLICATION ...........................................................................................................................51 9 APPENDIX PHOTOGRAPHS OF EUT ...........................................................................................................52 10 APPENDIX PHOTOGRAPHS OF TEST SETUP .........................................................................................53 Report No. ENS2509300131W00101R Page 3 of 53 Ver.1.0 1 TEST RESULT CERTIFICATION Applicant : SHENZHEN DAYBETTER OPTO-ELECTRONICS CO.,LTD Address : Floor 4, Building 2, Antuoshan High-tech Park, No.59 Xinsha Road, Shajing Town, Baoan District, Shenzhen Manufacturer : SHENZHEN DAYBETTER OPTO-ELECTRONICS CO.,LTD Address : Floor 4, Building 2, Antuoshan High-tech Park, No.59 Xinsha Road, Shajing Town, Baoan District, Shenzhen EUT : Floor Lamp Model Name : J5FLF111T11, J5FLF111T01, J5FLF211T11, J5FLF211T01 Trademark : N/A Measurement Procedure Used: APPLICABLE STANDARDS STANDARD TEST RESULT FCC 47 CFR Part 2, Subpart J FCC 47 CFR Part 15, Subpart C PASS IC RSS-GEN, Issue 5(04-2018)+A1(03-2019)+A2(02-2021) IC RSS-247 Issue 3(08-2023) PASS The above equipment was tested by EMTEK(SHENZHEN) CO., LTD. The test data, data evaluation, test procedures, and equipment configurations shown in this report were made in accordance with the procedures given in ANSI C63.10 (2020) and the energy emitted by the sample EUT tested as described in this report is in compliance with the requirements of FCC Rules Part 2, Part 15.247, IC RSS-247 Issue 3 and IC RSS-GEN, …

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TEST SETUP PHOTOGRAPHS 1.1. Photos of Conducted Emission Measurement 1.2. Photos of Radiation Emission Measurement Spurious Emission Test Setup (Below 1GHz) Spurious Emission Test Setup (Above 1GHz) ----------------The end----------------