2A4NK-GKOFD20W120VBWifi & Bluetooth Smart Flood Light

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 interference. 2) This device must accept any interference, including interference that may cause undesired operation of the device. 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 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. Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. FCC Radiation Exposure Statement This device complies with FCC RF radiation exposure limits set forth for an uncontrolled environment. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.

DATE 2022-03-01 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2A4NK-GKOFD20W120VB Product Name: Wifi & Bluetooth Smart Flood Light Request for Confidentiality Pursuant to Sections 0.457 and 0.459 of the commissions rules, we hereby request that the following documents be held confidential: (List here the documents for which you are seeking confidentiality – for example ...)  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. <Signature> Name: Jason Gu Title: Manager Applicant Company: Gingko Lighting Corp

Date：2022-03-01 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize Compliance Testing, LLC 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). <Signature> Name: Jason Gu Title: Manager Applicant Company: Gingko Lighting Corp

DATE:2022-03-01 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 Authority to Act asAgent Onourbehalf,IappointDongguan New Testing Centre Co., Ltd；3F, No. 1 the 1st North Industry Road, Songshan Lake Science &Technology Park, Dongguan, Guangdong, China, 523808. toactasouragentinthepreparationofthisapplicationforequipmentcertification.Icertifythatsubmitte ddocumentsproperlydescribethedeviceorsystemforwhichequipmentcertificationissought.Ialsoc ertifythateachunitmanufactured,importedormarketed,asdefinedintheFederalCommunicationsC ommission’sregulationswillhaveaffixedtoit a label identical to that submitted for approval with thisapplication. Forinstanceswhereourauthorizedagentsignstheapplicationforcertificationonourbehalf,Iack nowledgethatallresponsibilityforcomplyingwiththetermsandconditionsforcertification,stillres ideswith Gingko Lighting Corp；10330 Argonne Woods Drive, Suite 200, Woodridge, IL 60517 <Signature> Name: Jason Gu Title: Manager Applicant Company: Gingko Lighting Corp

Page 1 of 1 FCC-ID: 2A4NK-GKOFD20W120VB External photos Model No: GKOFD20W120VB-RGBW-WB

Page 1 of 1 FCC-ID: 2A4NK-GKOFD20W120VB Label and label location Model No: GKOFD20W120VB‐RGBW‐WB Wifi & Bluetooth Smart Flood Light Model: GKOFD20W120VB‐RGBW‐WB FCC ID: 2A4NK‐GKOFD20W120VB 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.

Page 1 of 5 FCC-ID: 2A4NK-GKOFD20W120VB InternalPhotos Model No: GKOFD20W120VB-RGBW-WB Page 2 of 5 FCC-ID: 2A4NK-GKOFD20W120VB Page 3 of 5 FCC-ID: 2A4NK-GKOFD20W120VB Page 4 of 5 FCC-ID: 2A4NK-GKOFD20W120VB BT And 2.4GWIFI Antenna Page 5 of 5 FCC-ID: 2A4NK-GKOFD20W120VB

FCC-ID: 2A4NK-GKOFD20W120VB Page 1 of 2 RF Exposure evaluation FCC ID: 2A4NK-GKOFD20W120VB 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: 2A4NK-GKOFD20W120VB Page 2 of 2 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 2.21dBi 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 15.550 35.8922 1.6643 0.0119 1.0000 PASS 802.11g 16.852 48.4395 1.6643 0.0160 1.0000 PASS 802.11n20 15.904 38.9404 1.6643 0.0129 1.0000 PASS 802.11n40 13.957 24.8714 1.6643 0.0082 1.0000 PASS 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 GFSK 4.855 3.058 1.6643 0.0010 1.0000 PASS 5. Conclusion The evaluation is not required.

FCC TEST REPORT Report No. ...................................... : NTC-ER2202006 Applicant’s name ........................... : Gingko Lighting Corp Address .......................................... : 10330 Argonne Woods Drive, Suite 200, Woodridge, IL 60517 DONGGUAN NEW TESTING CENTRE CO., LTD ◎Address: 3F, No. 1 the 1st North Industry Road, Songshan Lake Science & Technology Park, Dongguan, Guangdong, China, 523808 Tel: +86-769-22212079 Web: http://www.ntc-cert.com E-mail: [email protected] Dongguan New Testing Centre Co., Ltd E-mail： [email protected] 3F, No. 1 the 1st North Industry Road, Songshan Lake Science & Technology Park, Dongguan, Guangdong, China, 523808 Page 1 of 83 Report No.: NTC-ER2202006 TABLE OF CONTENTS TEST REPORT DECLARE ............................................................................................................ 3 1. Summary of test results ........................................................................................................... 4 2. General test information .......................................................................................................... 5 2.1. Detail models ............................................................................................................................. 7 2.2. Test Peripheral List ................................................................................................................... 7 2.3. Block diagram EUT configuration for test ............................................................................. 8 2.4. Test environment conditions ................................................................................................... 8 2.5. Measurement uncertainty ........................................................................................................ 8 3. Power Line Conducted Emission Test .................................................................................. 9 3.1. Test equipment ......................................................................................................................... 9 3.2. Block diagram of test setup ..................................................................................................... 9 3.3. Power Line Conducted Emission Limits (Class B) .............................................................. 9 3.4. Test Procedure ........................................................................................................................ 10 3.5. Test Result ............................................................................................................................... 10 4. Radiated emission test ........................................................................................................... 13 4.1. Test equipment ....................................................................................................................... 13 4.2. Block diagram of test setup ................................................................................................... 14 4.3. Limit .......................................................................................................................................... 16 4.4. Test Procedure ........................................................................................................................ 17 4.5. Test result ................................................................................................................................ 17 5. Output Power .......................................................................................................................... 24 5.1. Test equipment ....................................................................................................................... 24 5.2. Block diagram of test setup ................................................................................................... 24 5.3. Limit .......................................................................................................................................... 24 5.4. Test Procedure ........................................................................................................................ 24 5.5. Test result ................................................................................................................................ 25 6. -6dB Bandwidth ....................................................................................................................... 32 6.1. Test equipment ....................................................................................................................... 32 6.2. Block diagram of test setup ................................................................................................... 32 6.3. Limit .......................................................................................................................................... 32 6.4. Test Procedure ........................................................................................................................ 32 6.5. Test result ................................................................................................................................ 33 7. Band Edges Measurement .................................................................................................... 40 7.1. Test equipment ....................................................................................................................... 40 7.2. Block diagram of test setup ................................................................................................... 40 7.3. Limit .......................................................................................................................................... 40 Dongguan New Testing Centre Co., Ltd E-mail： [email protected] 3F, No. 1 the 1st North Industry Road, Songshan Lake Science & Technology Park, Dongguan, Guangdong, China, 523808 Page 2 of 83 Report No.…

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Report No.:NTCER1911011 Dongguan New Testing Centre Co., Ltd E-mail： [email protected] 3F, No. 1 the 1st North Industry Road, Songshan Lake Science & Technology Park, Dongguan, Guangdong, China, 523808 DONGGUAN NEW TESTING CENTRE CO., LTD ◎Address: 3F, No. 1 the 1st North Industry Road, Songshan Lake Science & Technology Park, Dongguan, Guangdong, China, 523808 Tel: +86-769-22212079 Web: http://www.ntc‐cert.com E-mail: [email protected] FCC TEST REPORT Report No. ...................................... : NTC-ER2202028 Applicant’s name ........................... : Gingko Lighting Corp Address .......................................... : 10330 Argonne Woods Drive, Suite 200, Woodridge, IL 60517 DONGGUAN NEW TESTING CENTRE CO., LTD ◎Address: 3F, No. 1 the 1st North Industry Road, Songshan Lake Science & Technology Park, Dongguan, Guangdong, China, 523808 Tel: +86-769-22212079 Web: http://www.ntc‐cert.com E-mail: [email protected] Dongguan New Testing Centre Co., Ltd E-mail： [email protected] 3F, No. 1 the 1st North Industry Road, Songshan Lake Science & Technology Park, Dongguan, Guangdong, China, 523808 Page 1 of 91 Report No.: NTC-ER2202028 TABLE OF CONTENTS Test Report Declare ...................................................................................................................... 3 1. Summary Of Test Results ....................................................................................................... 4 2. General Test Information ......................................................................................................... 4 2.1. Description of EUT ................................................................................................................... 4 2.2. Assistant equipment used for test .......................................................................................... 6 2.3. Block diagram EUT configuration for test ............................................................................. 6 2.4. Test environment conditions ................................................................................................... 7 2.5. Measurement uncertainty ........................................................................................................ 8 3. Power Line Conducted Emission Test .................................................................................. 9 3.1. Test equipment ......................................................................................................................... 9 3.2. Block diagram of test setup ..................................................................................................... 9 3.3. Power line conducted emission limits (class B) ................................................................... 9 3.4. Test procedure ........................................................................................................................ 10 3.5. Test result ................................................................................................................................ 10 4. Radiated Emission Test ......................................................................................................... 13 4.1. Test equipment ....................................................................................................................... 13 4.2. Block diagram of test setup ................................................................................................... 14 4.3. Limit .......................................................................................................................................... 16 4.4. Test procedure ........................................................................................................................ 17 4.5. Test result ................................................................................................................................ 17 5. Maximum Peak Output Power .............................................................................................. 24 5.1. Applied procedures / limit ...................................................................................................... 24 5.2. Test procedure ........................................................................................................................ 24 5.3. Deviation from standard ......................................................................................................... 24 5.4. Test setup ................................................................................................................................ 24 5.5. Test Results ............................................................................................................................. 24 6. -6dB Bandwidth Test .............................................................................................................. 27 6.1. Applied procedures / limit ...................................................................................................... 27 6.2. Test procedure ........................................................................................................................ 27 6.3. Deviation from standard ......................................................................................................... 27 6.4. Test setup ................................................................................................................................ 27 6.5. Test results .............................................................................................................................. 27 7. Power Spectral Density ......................................................................................................... 30 Dongguan New Testing Centre Co., Ltd E-mail： [email protected] 3F, No. 1 the 1st North Industry Road, Songshan Lake Science & Technology Park, Dongguan, Guangdong, China, 523808 Page 1 of 91 Report No.: NTC-ER2202028 7.1. Applied p…

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Page 1 of 2 FCC-ID: 2A4NK-GKOFD20W120VB Setup photos Model No: Model No: GKOFD20W120VB-RGBW-WB Conducted emission test Radiated emission test 30MHz – 1GHz Page 2 of 2 FCC-ID: 2A4NK-GKOFD20W120VB Above 1GHz