2A9DJLT2DLED light Remote

Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. 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. Note: 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.

Ningbo Jinghui Machinery Casting Co.,Ltd TCBJ FORM-4 Issued by: TCB Administrator Revision 6 12/06/10 2022.11.29 MET Laboratories, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We,Ningbo Jinghui Machinery Casting Co.,Ltd hereby authorize Shenzhen LGT Test Service 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: zhouankang/manager

Ningbo Jinghui Machinery Casting Co.,Ltd TCBJ FORM-4 Issued by: TCB Administrator Revision 6 12/06/10 2022.11.29 MET Laboratories, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (FCC ID:2A9DJLT2D) 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 • Schematics • Block diagram • Operation description These materials contain trade secrets and proprietary information and are not customarily released to the public. The public disclosure of this information might be harmful to the company and provide unjustified benefits to our competitors. required to be submitted with this application be permanently withheld from public review. Please contact me if there is any information you may need. Sincerely, Signature: Name: zhouankang/manager

Page 1 of 3 Report No.: LGT22K032 Appendix - External Photographs of EUT Constructional Details Model Name: LT-2D Photo 1 Photo 2 Page 2 of 3 Report No.: LGT22K032 Photo 3 Photo 4 Page 3 of 3 Report No.: LGT22K032 Photo 5 Photo 6

FCC Label LED light Model name: LT-2D FCC ID:2A9DJLT2D

Page 1 of 2 Report No.: LGT22K032 Appendix - Internal Photographs of EUT Constructional Details Model Name: LT-2D Photo 1 Photo 2 PCB antenna Page 2 of 2 Report No.: LGT22K032 Photo 3 Photo 4

FCC ID :2A9DJLT2D RF EXPOSURE EVALUATION METHOD SAR Test Exclusion Thresholds for 100 MHz – 6 GHz and ≤ 50 mm Approximate SAR Test Exclusion Power Thresholds at Selected Frequencies and Test Separation Distances are illustrated in the following Table. The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] · [√f(GHz)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR,where f(GHz) is the RF channel transmit frequency in GHz Power and distance are rounded to the nearest mW and mm before calculation The result is rounded to one decimal place for comparison The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm and for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. FCC ID :2A9DJLT2D The Worst Case Mode 2402-2480MHz Detector PEAK 2402MHz 2.5±1dBm 2440MHz 2±1dBm 2480MHz 2±1dBm Remark: The worst case gain of the antenna is 1.87dBi. 1.87dBi logarithmic terms convert to numeric result is nearly 1.54 2.4023.223.5 2.2387211390.6939 3 2.442.633 1.9952623150.6233 3 2.481.63 1.9952623150.6284 3 Limit Maximum Peak Conducted Output Power (dBm) frequency (GHz) Tune up Power (dBm) Tune up Power (mW) Result Threshold at which no SAR required is 0.6939≤ 3.0 for 1-g SAR, Separation distance is 5mm.

Report for Broadcom Tested Products. • Antenna 1: integrated antenna. • Frequency = 2.402GHz. • Frequency = 2.441GHz. • Frequency = 2.480GHz. Coordinate System Reference: Antenna 1. Radiation pattern: Antenna 1. XZ Plane at f = 2.402GHz Co-cross polarization field (dBi) Solid line: vertical polarizationDash line: horizontal polarization Total field (dBi) 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 -15 -20 -20 -25 -25 -30 -30 -35 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 Radiation pattern: Antenna 1. YZ Plane at f = 2.402GHz Co-cross polarization field (dBi) Solid line: vertical polarizationDash line: horizontal polarization Total field (dBi) 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 -15 -20 -20 -25 -25 -30 -30 -35 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 Radiation pattern: Antenna 1. XY Plane at f = 2.402GHz Co-cross polarization field (dBi) Solid line: vertical polarizationDash line: horizontal polarization Total field (dBi) 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 -15 -20 -20 -25 -25 -30 -30 -35 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 Radiation pattern: Antenna 1. XZ Plane at f = 2.441GHz Co-cross polarization field (dBi) Solid line: vertical polarizationDash line: horizontal polarization Total field (dBi) 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 -15 -20 -20 -25 -25 -30 -30 -35 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 Radiation pattern: Antenna 1. YZ Plane at f = 2.441GHz Co-cross polarization field (dBi) Solid line: vertical polarizationDash line: horizontal polarization Total field (dBi) 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 -15 -20 -20 -25 -25 -30 -30 -35 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 Radiation pattern: Antenna 1. XY Plane at f = 2.441GHz Co-cross polarization field (dBi) Solid line: vertical polarizationDash line: horizontal polarization Total field (dBi) 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 -15 -20 -20 -25 -25 -30 -30 -35 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 Radiation pattern: Antenna 1. XZ Plane at f = 2.480GHz Co-cross polarization field (dBi) Solid line: vertical polarizationDash line: horizontal polarization Total field (dBi) 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 -15 -20 -20 -25 -25 -30 -30 -35 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 Radiation pattern: Antenna 1. YZ Plane at f = 2.480GHz Co-cross polarization field (dBi) Solid line: vertical polarizationDash line: horizontal polarization Total field (dBi) 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 -15 -20 -20 -25 -25 -30 -30 -35 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 Radiation pattern: Antenna 1. XY Plane at f = 2.480GHz Co-cross polarization field (dBi) Solid line: vertical polarizationDash line: horizontal polarization Total field (dBi) 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 -15 -20 -20 -25 -25 -30 -30 -35 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 Return Loss: Antenna 1 BW(-10dB) ¡ 13.48% 2 2.2 2.4 2.6 2.8 3 Frequency (GHz) -16-14-12-10 -8-6-4-2 R e t u r n L o s s ( d B ) Measurements summary Frequency (GHz) Plane Return Loss (dB) Polarization Gain max. (dBi) θ for Gain max. φ for Gain max. Antenna 1 2.402 XZ -10.90 Vertical -7.8 290 2.402 XZ -10.90 Horizontal 0.786 182 2.402 YZ -10.90 Vertical 1.21 226 2.402 YZ -10.90 Horizontal -7.75 10 2.402 XY -10.90 Vertical -15.4 20 2.402 XY -10.90 Horizontal 0.93 180 2.441 XZ -12.20 Vertical -7.36 318 2.441 XZ -12.20 Horizontal 1.32 180 2.441 YZ -12.20 Vertical 0.981 204 2.441 YZ -12.20 Horizontal -8.23 24 2.441 XY -12.20 Vertical -14.1 -14 2.441 XY -12.20 Horizontal 1.74 180 2.48 XZ -13.80 Vertical -7.95 312 2.48 XZ -13.80 Horizontal 1.81 186 2.48 YZ -13.80 Vertical 0.204 214 2.48 YZ -13.80 Horizontal -8.38 8 2.48 XY -13.80 Vertical -15.8 12 2.48 XY -13.80 Horizontal 1.87 180

Page 1 of 2 Report No.: LGT22J032 Appendix - Test Setup photos Conducted Emission Test Setup Photo Radiated Emission Test Setup Photo - Below 1GHz Page 2 of 2 Report No.: LGT22J032 Radiated Emission Test Setup Photo - Above 1GHz

The test report is effective only with both signature and specialized stamp. This report shall not be reproduced except in full without the written approval of the Laboratory. The results in this report only apply to the tested sample. Shenzhen LGT Test Service Co., Ltd. Tel: 0755-89668180 E-mail:[email protected] Web: www.lgt-cert.com Room 205, Building 13, Zone B, Chen Hsong Industrial Park, No.177 Renmin West Road, Jinsha Community, Kengzi Street, Pingshan New District, Shenzhen, China RF TEST REPORT Product Name: LED light Remote Model Name: LT-2D, LT-2DY, LT-2DP(H), LT-2L LT-2LS(H), LT-12, LT-2LY, LT-2ZB, LT-2ZL FCC ID: 2A9DJLT2D Issued For : Ningbo Jinghui Machinery Casting Co., Ltd No.18, Meilin Road, Sanqishi Town, Yuyao District, Ningbo, China Issued By : Shenzhen LGT Test Service Co., Ltd. Room 205, Building 13, Zone B, Chen Hsong Industrial Park, No.177 Renmin West Road, Jinsha Community, Kengzi Street, Pingshan New District, Shenzhen, China Report Number: LGT22K032RF01 Sample Received Date: Nov. 10, 2022 Date of Test: Nov. 10, 2022 – Nov.28, 2022 Date of Issue: Nov. 28, 2022 Report No.: LGT22K032RF01 Page 2 of 58 TEST REPORT CERTIFICATION Applicant Ningbo Jinghui Machinery Casting Co., Ltd Address No.18, Meilin Road, Sanqishi Town, Yuyao District, Ningbo, China Manufacturer Ningbo Jinghui Machinery Casting Co., Ltd Address No.18, Meilin Road, Sanqishi Town, Yuyao District, Ningbo, China Product Name LED light Remote Trademark N/A Model Name LT-2D, LT-2DY, LT-2DP(H), LT-2L, LT-2LS(H), LT-12, LT-2LY, LT-2ZB, LT-2ZL Sample Status: Normal APPLICABLE STANDARDS STANDARD TEST RESULTS FCC Part 15.247, Subpart C ANSI C63.10-2013 PASS Prepared by: Approved by: Zane Shan Vita Li Engineer Technical Director Report No.: LGT22K032RF01 Page 3 of 58 Table of Contents 1. SUMMARY OF TEST RESULTS 6 1.1 TEST FACTORY 7 1.2 MEASUREMENT UNCERTAINTY 7 2. GENERAL INFORMATION 8 2.1 GENERAL DESCRIPTION OF THE EUT 8 2.2 DESCRIPTION OF THE TEST MODES 10 2.3 TEST SOFTWARE AND POWER LEVEL 10 2.4 DESCRIPTION OF NECESSARY ACCESSORIES AND SUPPORT UNITS 11 2.5 EQUIPMENTS LIST 12 3. EMC EMISSION TEST 13 3.1 CONDUCTED EMISSION MEASUREMENT 13 3.2 TEST PROCEDURE 14 3.3 TEST SETUP 14 3.4 EUT OPERATING CONDITIONS 14 3.5 TEST RESULTS 15 4. RADIATED EMISSION MEASUREMENT 17 4.1 RADIATED EMISSION LIMITS 17 4.2 TEST PROCEDURE 19 4.3 TEST SETUP 20 4.4 EUT OPERATING CONDITIONS 20 4.5 FIELD STRENGTH CALCULATION 21 4.6 TEST RESULTS 22 4.7 RADIATED BAND EDGE 26 5. CONDUCTED SPURIOUS & BAND EDGE EMISSION 30 5.1 LIMIT 30 5.2 TEST PROCEDURE 30 5.3 TEST SETUP 30 5.4 EUT OPERATION CONDITIONS 30 5.5 TEST RESULTS 31 6. POWER SPECTRAL DENSITY TEST 32 6.1 LIMIT 32 6.2 TEST PROCEDURE 32 6.3 TEST SETUP 32 Report No.: LGT22K032RF01 Page 4 of 58 Table of Contents 6.4 EUT OPERATION CONDITIONS 32 6.5 TEST RESULTS 32 7. BANDWIDTH TEST 33 7.1 LIMIT 33 7.2 TEST PROCEDURE 33 7.3 TEST SETUP 33 7.4 EUT OPERATION CONDITIONS 33 7.5 TEST RESULTS 33 8. PEAK OUTPUT POWER TEST 34 8.1 LIMIT 34 8.2 TEST PROCEDURE 34 8.3 TEST SETUP 34 8.4 EUT OPERATION CONDITIONS 34 8.5 TEST RESULTS 35 9. ANTENNA REQUIREMENT 36 9.1 STANDARD REQUIREMENT 36 9.2 EUT ANTENNA 36 APPENDIX I:TEST RESULTS 37 DUTY CYCLE 37 MAXIMUM PEAK CONDUCTED OUTPUT POWER 40 -6DB BANDWIDTH 41 OCCUPIED CHANNEL BANDWIDTH 44 MAXIMUM POWER SPECTRAL DENSITY LEVEL 47 BAND EDGE 50 CONDUCTED RF SPURIOUS EMISSION 53 APPENDIX II: TEST SETUP PHOTOS 57 Report No.: LGT22K032RF01 Page 5 of 58 Revision History Rev. Issue Date Contents 00 Nov. 28, 2022 Initial Issue Report No.: LGT22K032RF01 Page 6 of 58 1. SUMMARY OF TEST RESULTS Test procedures according to the technical standards: KDB 558074 D01 15.247 Meas Guidance v05r02. FCC Part 15.247, Subpart C Standard Section Test Item Judgment Remark 15.207 Conducted Emission PASS -- 15.247 (a)(2) 6dB Bandwidth PASS -- 15.247 (b)(3) Output Power PASS -- 15.209 Radiated Spurious Emission PASS -- 15.247 (d) Conducted Spurious & Band Edge Emission PASS -- 15.247 (e) Power Spectral Density PASS -- 15.205 Restricted Band Edge Emission PASS -- Part 15.247(d)/ Part 15.209(a) Band Edge Emission PASS -- 15.203 Antenna Requirement PASS -- NOTE: (1) ‘N/A’ denotes test is not applicable in this Test Report. (2) All tests are according to ANSI C63.10-2013. Report No.: LGT22K032RF01 Page 7 of 58 1.1 TEST FACTORY Company Name: Shenzhen LGT Test Service Co., Ltd. Address: Room 205, Building 13, Zone B, Chen Hsong Industrial Park, No.177 Renmin West Road, Jinsha Community, Kengzi Street, Pingshan New District, Shenzhen, China Accreditation Certificate A2LA Certificate No.: 6727.01 FCC Registration No.: 746540 CAB ID: CN0136 1.2 MEASUREMENT UNCERTAINTY The reported uncertainty of measurement y ± U, where expended uncertainty U is based on a standard uncertainty multiplied by a coverage factor of k=2, providing a level of confidence of approximately 95 %. Parameter Uncertainty Occupied Channel Bandwidth ±3.2 % RF Output Power, Conducted ±0.71dB Power Spectral Density, Conducted ±1.57 dB Unwanted Emission, Conducted ±0.63dB Conducted emission ±2.80dB All Emissions, Radiated (0.009-30MHz) ±2.16dB All Emissions, Radiated (30MHz-1GHz) ±4.40dB All Emissions, Radiated (1GHz-18GHz) ±5.49dB Temperature ±0.5°C Humidity ±2% Duty Cycle ±2.3% Report No.: LGT22K032RF01 Page 8 of 58 2. GENERAL INFORMATION 2.1 GENERAL DESCRIPTION OF THE EUT Product Name LED light Remote Trademark N/A Model Name LT-2D Series Model LT-2DY, LT-2DP(H), LT-2L, LT-2LS(H), LT-12, LT-2LY, LT-2ZB, LT-2ZL Model Difference Different model names Product Description The EUT is a LED light Remote Operation Frequency: 2402~2480 MHz Modulation Type: GFSK Radio Technology: BLE Bluetooth Configuration: 1M PHY Number Of Channel: 40 Antenna Designation: Please refer to the Note 3. Antenna Gain (dBi) 1.87 Channel List Please refer to the Note 2. Rating Input: 12V/1.2A, 14.5W Hardware version number N/A Software version number N/A Connecting I/O Port(s) Please refer to the Note 1. Note: 1. For a more detailed features description, please…

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