X4YHABUC310LED bulb

Federal Communications Commission (FCC) Statement 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. Warning: Changes or modifications made to this device not expressly approved by Xian Chishine Optoelectronics Technology Co.,Ltd may void the FCC authorization to operate this device. Note: The manufacturer is not responsible for any radio or TV interference caused by unauthorized modifications to this equipment. Such modifications could void the user’s authority to operate the equipment. Radiation Exposure StatementThis 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 and your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.

C5266091_X8_Ed.1 1/1 Letter of Authorization < NEXXT SOLUTIONS > Company: NEXXT SOLUTIONS Address: 3505 N.W 107TH AVE., DORAL, FLORIDA, 33178, US Product Name: Model Number: NHB-C310 FCC Identifier: X4YHABUC310 We authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, to act on our behalf on all matters concerning the above named equipment. Any individual within LGAI Technological Center S.A. is authorized to act on our behalf and take action on the application. We declare that authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, is allowed to forward all information related to the approval project to the Federal Communication Commission and to discuss any issues concerning the approval application. Any and all acts carried out by LGAI Technological Center S.A. on our behalf shall have the same effect as acts of our own. Name: Albert Mizrachi Date: 26 Nov. 2020 Title: Vice president of product development Signature of applicant: LED bulb

C5266091_X10_Ed.1 1/1 < NEXXT SOLUTIONS > Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 27 Nov 2020 Subject: Request for Confidentiality FCC ID: X4YHABUC310 To Whom It May Concern, Pursuant to the provisions of Sections 0.457 and 0.459 of Commission's rules (47CFR0.457, 0.459), we are requesting the Commission to withhold the following attachment(s) as confidential document from public disclosure. Exhibits Long-Term Confidentiality Short-Term Confidentiality 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 Internal Photos Parts List / Tune Up RF Exposure Info Operational Description Cover Letter(s) No No SDR Software / Security Info No 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. It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: Albert Mizrachi Title: Vice president of product development

FCC-ID: X4YHABUC310 Page 1 of 2 Report No.: CTL2009212013-WF External Photos of EUT FCC-ID: X4YHABUC310 Page 2 of 2 Report No.: CTL2009212013-WF

FCC-ID: X4YHABUC310 Page 1 of 1 Report No.: CTL2009212013-WF FCC-ID Label Information 1. Label location: 2.FCC ID Label: X4YHABUC310 LED bulb Model: NHB-C310 FCC: X4YHABUC310 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.

FCC-ID: X4YHABUC310 Page 1 of 5 Report No.: CTL2009212013-WF Internal Photos of EUT FCC-ID: X4YHABUC310 Page 2 of 5 Report No.: CTL2009212013-WF FCC-ID: X4YHABUC310 Page 3 of 5 Report No.: CTL2009212013-WF FCC-ID: X4YHABUC310 Page 4 of 5 Report No.: CTL2009212013-WF Antenna ESP8285

FCC-ID: X4YHABUC310 Page 1 of 2 Report No.: CTL2009212013-WF RF Exposure evaluation FCC ID: X4YHABUC310 1. Reference According to §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. According to §1.1310 and §2.1091 RF exposure is calculated. KDB447498 D01: Mobile and Portable Devices RF Exposure Procedures and Equipment Authorization Policies 2. Limit Limits for Maximum Permissible Exposure (MPE)/Controlled Exposure Frequency Range(MHz) Electric Field Strength(V/m) Magnetic Field Strength(A/m) Power Density (mW/cm²) Averaging Time (minute) Limits for Occupational/Controlled Exposure 0.3 – 3.0 3.0 – 30 30 – 300 300 – 1500 1500 – 100,000 614 1842/f 61.4 / / 1.63 4.89/f 0.163 / / (100) * (900/f 2 )* 1.0 f/300 5 6 6 6 6 6 Limits for Maximum Permissible Exposure (MPE)/Uncontrolled Exposure Frequency Range(MHz) Electric Field Strength(V/m) Magnetic Field Strength(A/m) Power Density (mW/cm²) Averaging Time (minute) Limits for Occupational/Controlled Exposure 0.3 – 3.0 3.0 – 30 30 – 300 300 – 1500 1500 – 100,000 614 824/f 27.5 / / 1.63 2.19/f 0.073 / / (100) * (180/f 2 )* 0.2 f/1500 1.0 30 30 30 30 30 F=frequency in MHz *=Plane-wave equivalent power density FCC-ID: X4YHABUC310 Page 2 of 2 Report No.: CTL2009212013-WF 3. MPE Calculation Method Predication of MPE limit at a given distance Equation from page 18 of OET Bulletin 65, Edition 97-01 S=PG/4πR² 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 4. Result As declared by the Applicant, the EUT is a wireless device used in a fix application, at least 20 cm from any body part of the user or nearby persons; from the maximum EUT RF output power, the minimum separation distance, r =20cm, as well as the gain of the used antenna is 0dBi for 2.4GHz , the RF power density can be obtained. For 2.4GHz wifi Mode Max. Output Power (dBm) Max. Output Power (mW) Antenna Gain (Numeric) Power Density At 20 cm (mW/cm 2 ) Power Density Limit FCC (mW/cm 2 ) Test Results 802.11b 18.96 78.70 1.7783 0.0278 1.0000 PASS 802.11g 17.04 50.58 1.7783 0.0179 1.0000 PASS 802.11n20 16.06 40.36 1.7783 0.0143 1.0000 PASS 5. Conclusion The SAR evaluation is not required.

Shenzhen CTL Testing Technology Co., Ltd. Tel: +86-755-89486194 E-mail: [email protected] TEST REPORT FCC PART 15.247 Report Reference No. ................ : CTL2009212013-WF Compiled by: ( position+printed name+signature) Happy Guo (File administrators) Tested by: ( position+printed name+signature) Cokoo Liao (Test Engineer) Approved by: ( position+printed name+signature) Ivan Xie (Manager) Product Name ............................ : LED bulb Model/Type reference ................ : NHB-C310 List Model(s) ............................... : N/A Trade Mark .................................. : N/A FCC ID ......................................... : X4YHABUC310 Applicant’s name ....................... : NEXXT SOLUTIONS Address of applicant ................. : Test Firm ..................................... : Shenzhen CTL Testing Technology Co., Ltd. Address of Test Firm ................. : Floor 1-A, Baisha Technology Park, No.3011, Shahexi Road, Nanshan District, Shenzhen, China 518055 Test specification ....................... : Standard ...................................... : 47 CFR FCC Part 15 Subpart C 15.247 TRF Originator ............................. : Shenzhen CTL Testing Technology Co., Ltd. Master TRF .................................. : Dated 2011-01 Date of receipt of test item ........ : Nov. 06, 2020 Date of sampling ........................ : Nov. 06, 2020 Date of Test Date ........................ : Nov. 06, 2020-Nov. 14, 2020 Date of Issue .............................. : Nov. 16, 2020 Result .......................................... : Pass Shenzhen CTL Testing Technology Co., Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen CTL Testing Technology Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen CTL 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. 3505 N.W 107TH AVE., DORAL, FLORIDA, 33178, US V1.0 Page 2 of 32 Report No.: CTL2009212013-WF TEST REPORT Test Report No. : CTL2009212013-WF Nov. 16, 2020 Date of issue Equipment under Test : LED bulb Sample No. CTL200921201-1-S003 Model /Type : NHB-C310 Listed Models : N/A Applicant : NEXXT SOLUTIONS Address : 3505 N.W 107TH AVE.,DORAL, FLORIDA, 33178, US Manufacturer : SUNGALE ELECTRONICS (SHENZHEN) CO., LTD Address : No.1302, DaHong High-Tech Park, No. 6-18, XinHe Road, Xinqiao, Shajing, BaoAn, Shenzhen, 518105, China Test result Pass * * In the configuration tested, the EUT complied with the standards specified page 5. The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the issuing testing laboratory. V1.0 Page 3 of 32 Report No.: CTL2009212013-WF ** Modified History ** Revisions Description Issued Data Report No. Remark Version 1.0 Initial Test Report Release 2020-11-16 CTL2009212013-WF Tracy Qi V1.0 Page 4 of 32 Report No.: CTL2009212013-WF Table of Contents Page 1. SUMMARY ............................................................................................................................................................... 5 1.1. TEST STANDARDS ..................................................................................................................................................... 5 1.2. TEST DESCRIPTION ........................................................................................................................................................ 5 1.3. TEST FACILITY .............................................................................................................................................................. 6 1.4. STATEMENT OF THE MEASUREMENT UNCERTAINTY ............................................................................................................... 6 2. GENERAL INFORMATION .......................................................................................................................................... 8 2.1. ENVIRONMENTAL CONDITIONS ........................................................................................................................................ 8 2.2. GENERAL DESCRIPTION OF EUT ...................................................................................................................................... 8 2.3. DESCRIPTION OF TEST MODES AND TEST FREQUENCY .......................................................................................................... 8 2.4. EQUIPMENTS USED DURING THE TEST .............................................................................................................................. 9 2.5. RELATED SUBMITTAL(S) / GRANT (S) .............................................................................................................................. 10 2.6. MODIFICATIONS ......................................................................................................................................................... 10 3. TEST CONDITIONS AND RESULTS ............................................................................................................................ 11 3.1. CONDUCTED EMISSIONS TEST ....................................................................................................................................... 11 3.2. RADIATED EMISSIONS AND BAND EDGE .......................................................................................................................... 14 3.3. MAXIMUM CONDUCTED OUTPUT POWER ....................................................................................................................... 21 3.4. POWER SPECTRAL DENSITY ......................................................................................................................................…

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Report No.: CTL2009212013-WF Appendix for 15.247 1. Bandwidth 1.1 Test Result Test Mode Frequency (MHz) TX Type ANT No. 6dB Bandwidth Verdict Test Result (MHz) Limits (MHz) 802.11b 2412 SISO 1 8.107 ≥0.5 PASS 2437 SISO 1 8.048 ≥0.5 PASS 2462 SISO 1 8.029 ≥0.5 PASS 802.11g 2412 SISO 1 16.452 ≥0.5 PASS 2437 SISO 1 16.435 ≥0.5 PASS 2462 SISO 1 16.503 ≥0.5 PASS 802.11n(HT20) 2412 SISO 1 17.607 ≥0.5 PASS 2437 SISO 1 17.613 ≥0.5 PASS 2462 SISO 1 17.619 ≥0.5 PASS Test Mode Frequency (MHz) TX Type ANT No. 99% Occupied Bandwidth Test Result (MHz) 802.11b 2412 SISO 1 11.177 Only for Report Use 2437 SISO 1 11.146 Only for Report Use 2462 SISO 1 11.183 Only for Report Use 802.11g 2412 SISO 1 16.922 Only for Report Use 2437 SISO 1 16.952 Only for Report Use 2462 SISO 1 16.936 Only for Report Use 802.11n(HT20) 2412 SISO 1 18.005 Only for Report Use 2437 SISO 1 18.033 Only for Report Use 2462 SISO 1 18.028 Only for Report Use 1.2 Test Graph - 6dB Bandwidth 1.3 Test Graph - 99% Occupied Bandwidth 2. Maximum Conducted Output Power 2.1 Test Result Test Mode Frequency (MHz) Tx Type Measured Peak Output Power (dBm) Limits (dBm) Verdict Ant 1 802.11b 2412 SISO 15.86 30 PASS 2437 SISO 17.25 30 PASS 2462 SISO 18.96 30 PASS 802.11g 2412 SISO 13.29 30 PASS 2437 SISO 15.22 30 PASS 2462 SISO 17.04 30 PASS 802.11n(HT20) 2412 SISO 12.47 30 PASS 2437 SISO 14.14 30 PASS 2462 SISO 16.06 30 PASS 2.2 Test Graph 3. Maximum Power Spectral Density (PSD) 3.1 Test Result Test Mode Frequency (MHz) Tx Type Maximum Power Spectral Density (dBm/3KHz) Limits (dBm/3kHz) Verdict Ant 1 802.11b 2412 SISO -12.19 ≤8 PASS 2437 SISO -10.63 ≤8 PASS 2462 SISO -8.94 ≤8 PASS 802.11g 2412 SISO -18.09 ≤8 PASS 2437 SISO -15.81 ≤8 PASS 2462 SISO -14.22 ≤8 PASS 802.11n(HT20) 2412 SISO -13.23 ≤8 PASS 2437 SISO -11.12 ≤8 PASS 2462 SISO -9.68 ≤8 PASS 3.2 Test Graph 4. Unwanted Emissions in Non-restricted Frequency Bands 4.1 Test Result Test Mode Frequency (MHz) TX Type ANT No. Spurious Conducted Emission (dBm) Limits (dBm) Verdict 802.11b 2412 SISO 1 Refer to test graph -14.79 PASS 2437 SISO 1 Refer to test graph -14.79 PASS 2462 SISO 1 Refer to test graph -14.79 PASS 802.11g 2412 SISO 1 Refer to test graph -20.95 PASS 2437 SISO 1 Refer to test graph -20.95 PASS 2462 SISO 1 Refer to test graph -20.95 PASS 802.11n(HT20) 2412 SISO 1 Refer to test graph -21.87 PASS 2437 SISO 1 Refer to test graph -21.87 PASS 2462 SISO 1 Refer to test graph -21.87 PASS 4.2 Test Graph

FCC-ID: X4YHABUC310 Page 1 of 2 Report No.: CTL2009212013-WF Test Setup Photos of the EUT FCC-ID: X4YHABUC310 Page 2 of 2 Report No.: CTL2009212013-WF