2BV9N-110458696FT SMART LIGHT TREE

LINHAI CHANGSHUO LIGHTING CO.,LTD Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 [May 25, 2026] U.S. Agent Designation [LINHAI CHANGSHUO LIGHTING CO.,LTD] acknowledges their consent for the following contact located in the United States to act as their agent for service of process for the equipment for which authorization is sought FCC ID: 2BV9N-11045869 Name and company of U.S. agent: [GLOCERTS TECHNOLOGY INC] Physical U.S. address of agent: [19784 SUNKISSED RIDGE DR, RIVERSIDE, CA 92507] FRN of U.S. agent: [0036339737] Email address of U.S. agent: [[email protected]] Telephone of U.S.agent: (626) 588-8039 [GLOCERTS TECHNOLOGY INC] acknowledges their obligation to accept service of process on behalf of [LINHAI CHANGSHUO LIGHTING CO.,LTD]. [LINHAI CHANGSHUO LIGHTING CO.,LTD] with the FRN [0038460010] accepts its obligation to maintain an agent for service of process in the United States for no less than 1 year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. By signing this form, we confirm the above and that we are aware of the application requirements listed under § 2.911(d)(7). The information provided in this letter is based on the referenced rule parts of Title 47 of the CFR as well as KDB 986446 D01. Sincerely, Signature Signature [WENGEN YUAN] [Huiying Fan] [manager] [Director] [LINHAI CHANGSHUO LIGHTING CO.,LTD] [GLOCERTS TECHNOLOGY INC]

LINHAI CHANGSHUO LIGHTING CO.,LTD (May 25, 2026) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(i) request for FCC ID:2BV9N-11045869 [LINHAI CHANGSHUO LIGHTING 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. We also certify that, as of the date of the filing of the application, the equipment does not utilize cyber-security or anti-virus software from Kaspersky Lab, Inc, or any of its successors and assignees, which is also on the “covered list”. Sincerely, (Applicant signature) (Applicant printed name)WENGEN YUAN LINHAI CHANGSHUO LIGHTING CO.,LTD (May 25, 2026) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(ii) request for FCC ID:2BV9N-11045869 [LINHAI CHANGSHUO LIGHTING 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 an entity producing “covered” equipment. Sincerely, (Applicant signature) (Applicant printed name)WENGEN YUAN

LINHAI CHANGSHUO LIGHTING CO.,LTD (May 25, 2026) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (6FT SMART LIGHT TREE / 11045869 / FCC ID: 2BV9N-11045869 ) To Whom It May Concern: This letter serves as an official request for confidentiality under sections 0.457 and 0.459 of CFR 47. We have requested that the Exhibits Long-Term Confidentiality Short-Term Confidentiality NOTE 2 ID Label/Location No No Attestation Statement No No External Photos No ☐ Block Diagram ☒ ☐ Schematics ☒ ☐ Test Report No No Test Setup Photos No ☐ User’s Manual ☐ NOTE 1 ☒ Internal Photos ☐ NOTE 1 ☒ Parts List / Tune Up ☐ ☐ RF Exposure Info No No Operational Description ☒ ☐ Cover Letter(s) No No SDR Software / Security Info ☐ No required to be submitted with this application be permanently withheld from public review. Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. Please contact me if there is any information you may need. Sincerely, Signature: Name: WENGEN YUAN Title: manager

LINHAI CHANGSHUO LIGHTING CO.,LTD (May 25, 2026) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize (Shenzhen CTB Testing Technology Co., Ltd.) to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). This agreement expires one year from the current date. Sincerely, Signature: Name: WENGEN YUAN Title: manager

Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 4 Model: 11045869 External Photos Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 4 Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 3 of 4 Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 4 of 4

FCC ID LABEL: Label Location: FCC ID: 2BV9N-11045869 Model No.: 11045869

FCC §15.247 (i), §2.1091 – RF Exposure FCC ID: 2BV9N-11045869 Applied procedures / limit According to FCC §15.247(i) and §1.1307(b)(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. Limits for Occupational / Controlled Exposure Frequency Range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) (mW/ cm 2 ) Averaging Time |E| 2 ,|H| 2 or S (minutes) 0.3-3.0 614 1.63 (100)* 6 3.0-30 1842 / f 4.89 / f (900 / f)* 6 30-300 61.4 0.163 1.0 6 300-1500 F/300 6 1500-100,000 5 6 Note: ƒ is frequency in MHz * = Power density limit is applicable at frequencies greater than 100 MHz Limits for General Population / Uncontrolled Exposure Frequency Range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) (mW/ cm 2 ) Averaging Time |E| 2 ,|H| 2 or S (minutes) 0.3-1.34 614 1.63 (100)* 30 1.34-30 824/f 2.19/f (180/f)* 30 30-300 27.5 0.073 0.2 30 300-1500 F/1500 30 1500-100,000 1.0 30 Note: f = frequency in MHz * = Plane-wave equivalent power density MPE PREDICTION Predication of MPE limit at a given distance, Equation from OET Bulletin 65, Edition 97-01 Where: S = power density P = power input to antenna G = power gain of the antenna in the direction of interest relative to an isotropic radiator R = distance to the center of radiation of the antenna,R=20cm Test Result of RF Exposure Evaluation Modes& Channel Freq. (MHz) Tune up Produce power Maximu m peak output power (dBm) Output power to antenna (mW) Antenna Gain (numeric) Power Density (S) (mW/ cm2) Limit (mW / cm2 ) Result BLE GFSK &2402 0±1 1 1.2589 0.6109 (-2.14dBi) 0.00015 1 Pass

Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 45 TEST REPORT Compiled by: Reviewed by: Approved by: Kai Chen Martin Feng Bin Mei / Director Note: If there is any objection to the inspection results in this report, please submit a written report to the company within 15 days from the date of receiving the report. The test report is effective only with both signature and specialized stamp. This result(s) shown in this report refer only to the sample(s) tested. The tested sample(s) and the sample information are provided by the applicant. The authenticity, accuracy, and completeness of the provided information are the sole responsibility of the applicant. Without written approval of Shenzhen CTB Testing Technology Co., Ltd. this report can’t be reproduced except in full. The result decision rules of our laboratory are based solely on the direct comparison between the actual measured values of test results and the standard limits, without considering the measurement uncertainty.“” indicates the testing items were fulfilled by subcontracted lab. “” indicates the items are not in CNAS accreditation scope. Test item description: 6FT SMART LIGHT TREE FCC ID: 2BV9N-11045869 Trademark(s): N/A Model/Type reference: 11045869 Applicant’s name: LINHAI CHANGSHUO LIGHTING CO.,LTD Address: Shuangzhai Village, DongchengTown, Linhai City, Zhejiang Province Manufacturer: LINHAI CHANGSHUO LIGHTING CO.,LTD Address: Shuangzhai Village, DongchengTown, Linhai City, Zhejiang Province Prepared By: Shenzhen CTB Testing Technology Co., Ltd. Address: 1&2/F., Building A, No.26, Xinhe Road, Xinqiao, Xinqiao Street, Bao'an District, Shenzhen, Guangdong, China Sample Received Date: May. 07, 2026 Sample tested Date: May. 07, 2026 to Ma y. 13, 2026 Issue Date: Ma y. 13, 2026 Report No.: CTB26050701901RF01 Test Standards FCC CFR Title 47 Part 15 Subpart C Section 15.247 ANSI C63.10:2020 Test Results PASS Remark: This is Bluetooth radio test report. Shenzhen CTB Testing Technology Co., Ltd. Report No.: CTB26050701901RF01 Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 45 TABLE OF CONTENT Test Report Declaration Page 1. VERSION ....................................................................................................................... 4 2. TEST SUMMARY .......................................................................................................... 5 3. MEASUREMENT UNCERTAINTY .............................................................................. 6 4. PRODUCT INFORMATION AND TEST SETUP ....................................................... 7 4.1 Product Information ................................................................................................................. 7 4.2 Test Setup Configuration ....................................................................................................... 7 4.3 Support Equipment .................................................................................................................. 7 4.4 Channel List ............................................................................................................................... 8 4.5 Test Mode .................................................................................................................................. 8 4.6 Test Environment ..................................................................................................................... 8 5. TEST FACILITY AND TEST INSTRUMENT USED .................................................. 9 5.1 Test Facility................................................................................................................................ 9 5.2 Test Instrument Used ............................................................................................................. 9 6. AC POWER LINE CONDUCTED EMISSION ......................................................... 12 6.1 Block Diagram Of Test Setup ............................................................................................. 12 6.2 Limit ........................................................................................................................................... 12 6.3 Test procedure ........................................................................................................................ 12 6.4 Test Result ............................................................................................................................... 14 7. RADIATED SPURIOUS EMISSION ......................................................................... 16 7.1 Block Diagram Of Test Setup ............................................................................................. 16 7.2 Limit ........................................................................................................................................... 16 7.3 Test procedure ........................................................................................................................ 17 7.4 Test Result ............................................................................................................................... 18 8. BAND EDGE AND RF COUNDUCTED SPURIOUS EMISSIONS ....................... 25 8.1 Block Diagram Of Test Setup ............................................................................................. 25 8.2 Limit ........................................................................................................................................... 25 8.3 Test procedure ........................................................................................................................ 25 8.4 Test Result ............................................................................................................................... 26 9. COUDUCTED OUTPUT POWER ............................................................................ 30 9.1 Block Diagram Of Test Setup ........................…

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求是 价值 双赢 深圳市拓频物联技术有限公司 Shenzhen Top Frequency IOT Technology Co.,Ltd. 专注天线方案、设计与生产 客 户：常州市巨泰电子有限公司 项 目：D01 日 期：2025.05.26 版 本：A1 射 频：QIU ZHI YUAN Room 411, Floor 4, Building A, Jinbolong Industrial Park, Huayun Road No.1, Yucui Community, Longhua Street, Longhua District, Shenzhen Shenzhen Top Frequency IOT Technology Co.,Ltd. 求是 价值 双赢 目 录 1. Test environment 2. Description of previous commissioning records 3. Description of matching circuit 4. Active test data 5. Conduction test data 6. Acoustic simulation test of call current 7. Environmental Treatment Description 8. GPS/WIFI/BT passive parameters 9. Measured effect of GPS/WIFI/BT 10. Summary 求是 价值 双赢 测试环境 测试项目设备 1. S参数 （S- parameter） 1. 回波损耗 （Return Loss） 2. 电压 驻波比（VSWR） 网络分析仪: Agilent E5071B HP 8753D 2. 有源测试 （Active ） 1. 发射功率 （ TRP ） 2. 接收灵敏度（TIS） 3.频率误差 4.屏灭、屏亮 1. 暗室：ETS 7x4x3 m (3D) Chamber ETS 5x3x3 m (3D) Chamber 2. 综合 测试仪: Agilent 8960 E5515B ×2 StarPoint SP6011 3. 无源测试 （Passive） 1.天线增益 （Gain） 2.天线效率 （Efficiency） 1. 暗室：ETS 7x4x3 m (3D) Chamber ETS 5x3x3 m (3D) Chamber 2. 网络分析仪：Agilent E5071B HP 8753D 求是 价值 双赢 Description of previous commissioning records DateEditionDescription of commissioning records 2025-05-26 A1Bluetooth 2.4GHz test prototype 求是 价值 双赢 ModelJT-DC300V0400-L4 TypographyA main board Antenna overview Antenna status Antenna status Antenna form Design area Match Changes antenna2.4GHz2.4GHz 2.4GHz cable D:0.6mm L:24mm Monopole支架无 Prototype status Commissioning the machine Environmental treatment Multiple locations Complete machine debugging instructions 求是 价值 双赢 Matching circuit - 433 antenna ANT PA NF 0Ω0Ω 求是 价值 双赢 Environmental treatment ： 求是 价值 双赢 Environmental treatment ： Follow the sample environment provided by your company 求是 价值 双赢 Actual measurement of BT antenna ： 1. Remote control connects to the LED controller, and the remote control plays multi- functions (Indoor) The straight-line distance of the front test is 30m when there is no obstacle.The straight distance of back to back test is 26m when there is no obstacle . 2. Remote control connects to the LED controller, and the remote control plays multi- functions (Outdoor) The straight-line distance of the front test is 30m when there is no obstacle.The straight distance of back to back test is 25m when there is no obstacle 。 3. Remote control connects to the LED controller, and the remote control plays multi- functions (Indoor) The straight-line distance of the front test is 40m when there is no obstacle.The straight distance of back to back test is 30m when there is no obstacle. 测试软件 求是 价值 双赢 Antenna Passive Efficiency Gain Data Frequency ID1 2 3 4 5 6 7 8 9 10 11 Frequency (MHz)2400.0 2410.0 2420.0 2430.0 2440.0 2450.0 2460.0 2470.0 2480.0 2490.0 2500.0 Point Values Ant. Port Input Pwr. (dBm) 0.00 0.00 0.000.000.000.000.000.000.00 0.00 0.00 Tot. Rad. Pwr. (dBm) -7.55 -7.70 -7.81 -7.66 -7.78-7.52-7.65-7.84-7.83 -7.63 -7.61 Peak EIRP (dBm) -2.68 -2.69 -2.77 -2.59 -2.49-2.14-2.30-2.55-2.63 -2.48 -2.39 Directivity (dBi) 4.86 5.01 5.045.075.295.385.355.285.21 5.15 5.22 Efficiency (dB) -7.55 -7.70 -7.81 -7.66 -7.78-7.52-7.65-7.84-7.83 -7.63 -7.61 Efficiency (%) 17.60 17.00 16.50 17.20 16.7017.7017.2016.5016.50 17.30 17.30 Gain (dBi) -2.68 -2.69 -2.77-2.59-2.49-2.14-2.30-2.55-2.63 -2.48 -2.39 NHPRP ±Pi/4 (dBm) -9.03 -9.20 -9.35-9.22-9.35-9.09-9.21-9.40-9.41 -9.24 -9.28 NHPRP ±Pi/6 (dBm) -10.63-10.78-10.91-10.76-10.90-10.63-10.74-10.93-10.99 -10.89 -10.98 NHPRP ±Pi/8 (dBm) -11.89-12.00-12.11-11.94-12.07-11.81-11.93-12.15-12.25 -12.19 -12.33 Upper Hem. PRP (dBm) -12.40-12.50-12.59-12.41-12.48-12.14-12.18-12.28-12.19 -11.93 -11.83 Lower Hem. PRP (dBm) -9.27 -9.45 -9.57-9.42-9.58-9.35-9.53-9.77-9.82 -9.64 -9.68 Upper Hem. PRP (%) 5.76 5.63 5.515.745.656.116.055.916.04 6.42 6.57 Lower Hem. PRP (%) 11.8411.3611.0311.4211.0211.6111.1410.5410.43 10.86 10.77 求是 价值 双赢 Antenna pattern and apple chart 433.00MHz @T45P45 2.4GHz @T45P45 2.4GHz @T45P45 求是 价值 双赢 Antenna pattern and apple chart 2.4GHz @T45P452.4GHz @T45P45 求是 价值 双赢 Antenna pattern and apple chart 2.4GHz @T45P45 2.4GHz @T45P45 Shenzhen Top Frequency IOT Technology Co.,Ltd. 求是 价值 双赢 Prompt description Tips: 1 、 This data is only for the data generated by the prototype provided by the customer, and does not represent the customer's final mass production status; 2 、 The customer is requested to carefully confirm the description of matching circuit modification and environmental treatment in our report; 3 、 Before mass production, please provide trial production prototype to our company for secondary verification; Please inform us in advance if there are material changes, software updates and environmental treatment; 4 、 If the customer needs a third party to retest or send it to the customer for testing, please come to our company for verification before sending the prototype; Prevent the machine from being different from the commissioning machine; 5 ： We do not accept the machine data other than our debugging and other darkroom test data, but you can refer to it, except for the certified darkroom. If there is any difference in the data, the debugging machine shall prevail to find the reason.

Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 2 Model: 11045869 Radiated Emission Below 1G Above 1G Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 2 Conducted emissions RF Conducted