2APN5IFAN04Wi-Fi Smart Ceiling Fan with Light Controller

Shenzhen Sonoff Technologies Co., Ltd. ADD: 1001, BLDG8, Lianhua Industrial Park, shenzhen, GD, China TEL: 0755-27955416 FAX: 0755-27955416 Mail: [email protected] DECLARATION OF SIMILARITY Date: 2021-06-24 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Dear Sir or Madam: We, Shenzhen Sonoff Technologies Co., Ltd., hereby declare that the product: Wi-Fi Smart Ceiling Fan with Light Controller, FCC ID: 2APN5IFAN04. The model iFan04-L which was tested by BACL(Dongguan) has four configurations of Capacitors and Relays (Capacitors and Relays are components of the same technical specification from two different manufacturers), they have the same model name and RF performance . A description of the differences between the Capacitors and Relays from two different manufacturers and that are declared similar are as follows: Components Manufacturer Type/Model Technical Data Colour Capacitor 1 Foshan shunde Chuangge Electronic Industrial Co Ltd. MKP-X2 AC275V 5uF Grey Capacitor 2 Fengming Electronic Technology Co., Ltd MKP-X2 AC275V 5uF Blue Relay 1 Zhejiang Fanhar Electronics Co., Ltd. W11-1A2STLE-H-DC5V DC5V 10A 250VAC Black Relay 2 Dongguan Golden Electrical Appliance Co Ltd. GI-1A-5LH DC5V 10A 250VAC Black And the four configurations of Capacitors and Relays are as follows: Configuration 1 Capacitor 1 + Relay 1 Configuration 2 Capacitor 1 + Relay 2 Configuration 3 Capacitor 2 + Relay 1 Configuration 4 Capacitor 2 + Relay 2 Please contact me should there be need for any additional clarification or information. Best Regards, Signature: Printed Name: Jerry Shi Title: Manager

QA-FR-171-A Shenzhen Sonoff Technologies Co., Ltd. Add: 1001, BLDG8, Lianhua Industrial Park, Shenzhen, GD, China Fax: 0755-27955416 FCC Confidential Authorization Tel: 0755-27955416 Email: [email protected] Date: 2021-06-24 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request regarding application for certification of FCC ID:2APN5IFAN04 In accordance with Sections 0.457 and 0.459 of th e Com mission’s Rules, Shenzhen Sonoff Technologies Co., Ltd. hereby requests long-term conf idential treatment of inf ormation accompanying this application a s outlined below: Block Diagram Schematics Operation Description The above materials contain proprietary and confidential information not customarily released to the public. The public disclosure of these materials provides unjustified benefits to its competitors in the market. Sincerely, Signature: Printed Name: Jerry Shi Title: Manager

EXHIBIT B - EUT EXTERNAL PHOTOGRAPHS 5 uF WiFi Antenna 433MHz Receive r Antenna 2.5uF WiFi Antenna 433MHz Receiver Antenna

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EXHIBIT C - EUT INTERNAL PHOTOGRAPHS 5 uF 2.5 uF

Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: DG1210430-14946E-00A Page 11 of 44 FCC §15.247 (i) & §1.1310 & §2.1091- MAXIMUM PERMISSIBLE EXPOSURE (MPE) Applicable Standard According to subpart 15.247(i)and subpart §1.1310, 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 Maximum Permissible Exposure (MPE) (§1.1310, §2.1091) (B) Limits for General Population/Uncontrolled Exposure Frequency Range (MHz) Electric Field Strength (V/m) Magnetic Field Strength (A/m) Power Density (mW/cm 2 ) Averaging Time (minutes) 0.3–1.34 614 1.63 *(100) 30 1.34–30 824/f 2.19/f *(180/f²) 30 30–300 27.5 0.073 0.2 30 300–1500 / / f/1500 30 1500–100,000 / / 1.0 30 f = frequency in MHz; * = Plane-wave equivalent power density; According to §1.1310 and §2.1091 RF exposure is calculated. Calculation formula: Prediction of power density at the distance of the applicable MPE limit S = PG/4R² = power density (in appropriate units, e.g. mW/cm 2 ); P = power input to the antenna (in appropriate units, e.g., mW); G = power gain of the antenna in the direction of interest relative to an isotropic radiator, the power gain factor, is normally numeric gain; R = distance to the center of radiation of the antenna (appropriate units, e.g., cm); Calculated Data: Frequency (MHz) Antenna Gain Conducted output power including Tune- up Tolerance Evaluation Distance (cm) Power Density (mW/cm 2 ) MPE Limit (mW/cm 2 ) (dBi) (numeric) (dBm)(mW) 2412-2462 3 2.00 22158.49 20.00 0.06 1.0 Result: The device meet FCC MPE at 20 cm distance

FCC PART 15.247 TEST REPORT For Shenzhen Sonoff Technologies Co.,Ltd. 1001, BLDG8, Lianhua Industrial Park, Shenzhen, GD, China Report Type: Original Report Product Name: Wi-Fi Smart Ceiling Fan with Light Controller Re port Number: DG1210430-14946E-00A Re port Date: 2021-06-30 Reviewed By: Ivan Cao Assistant Manager Test Laboratory: Bay Area Compliance Laboratories Corp. (Dongguan) No.12, Pulong East 1 st Road, Tangxia Town, Dongguan, Guangdong, China Tel: +86-769-86858888 Fax: +86-769-86858891 www.baclcorp.com.cn FCC ID:2APN5IFAN04 Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: DG1210430-14946E-00A Page 2 of 44 TABLE OF CONTENTS GENERAL INFORMATION ....................................................................................................................................... 4 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ..................................................................................... 4 OBJECTIVE ................................................................................................................................................................... 4 TEST METHODOLOGY .................................................................................................................................................. 4 MEASUREMENT UNCERTAINTY .................................................................................................................................... 5 TEST FACILITY ............................................................................................................................................................. 5 DECLARATIONS ............................................................................................................................................................ 5 SYSTEM TEST CONFIGURATION .......................................................................................................................... 6 DESCRIPTION OF TEST CONFIGURATION ...................................................................................................................... 6 EUT EXERCISE SOFTWARE .......................................................................................................................................... 6 EQUIPMENT MODIFICATIONS ....................................................................................................................................... 8 SUPPORT EQUIPMENT LIST AND DETAILS .................................................................................................................... 8 SUPPORT CABLE LIST AND DETAILS ............................................................................................................................ 8 BLOCK DIAGRAM OF TEST SETUP ................................................................................................................................ 9 SUMMARY OF TEST RESULTS ............................................................................................................................. 10 FCC §15.247 (i) & §1.1310 & §2.1091- MAXIMUM PERMISSIBLE EXPOSURE (MPE) ....................................... 11 APPLICABLE STANDARD ............................................................................................................................................ 11 FCC §15.203 - ANTENNA REQUIREMENT ........................................................................................................... 12 APPLICABLE STANDARD ............................................................................................................................................ 12 ANTENNA CONNECTOR CONSTRUCTION .................................................................................................................... 12 FCC §15.207 (a) – AC LINE CONDUCTED EMISSIONS ..................................................................................... 13 APPLICABLE STANDARD ............................................................................................................................................ 13 EUT SETUP ................................................................................................................................................................ 13 EMI TEST RECEIVER SETUP ....................................................................................................................................... 13 TEST PROCEDURE ...................................................................................................................................................... 14 CORRECTED AMPLITUDE & MARGIN CALCULATION ................................................................................................. 14 TEST EQUIPMENT LIST AND DETAILS ......................................................................................................................... 14 TEST DATA ................................................................................................................................................................ 15 FCC §15.209, §15.205 & §15.247(d) - SPURIOUS EMISSIONS ............................................................................. 17 APPLICABLE STANDARD ............................................................................................................................................ 17 EUT SETUP ................................................................................................................................................................ 17 EMI TEST RECEIVER & SPECTRUM ANALYZER SETUP .............................................................................................. 18 TEST PROCEDURE ...................................................................................................................................................... 18 CORRECTED AMPLITUDE & MARGIN CALCULATION ................................................................................................. 18 TES…

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EXHIBIT D - TEST SETUP PHOTOGRAPHS Conducted Emissions Front View Conducted Emissions Side View Radiated Emission Below 1GHz View Radiated Emission Above 1GHz View