General Remarks
All test equipment used was calibrated according to the laboratory's calibration program and meets relevant standards. Traceability is ensured through the management system. Detailed information on test conditions, equipment, and measurement uncertainty is available upon request.
This document was digitally signed. TÜV Rheinland has not verified, and is not responsible for verifying, any legal or other requirements applicable to this document; such verification is the user's responsibility. Validity of the digital signature can be confirmed by a separate document upon request.
Test clauses marked with '*' were subcontracted. Deviations from specifications are noted in the respective clauses.
The decision rule for conformity statements is based on the "Zero Guard Band Rule" and "Simple Acceptance" as per ILAC G8:2019 and IEC Guide 115:2021, unless otherwise specified.
Test Sites
Testing was conducted at TÜV Rheinland (Shanghai) Co., Ltd. facilities, located at Workshop14, North Half of Workshop 10 and Workshop 16, Pingqian (Taicang) Modern Industrial Park, No.525, Yuewang Lingang South Road, Shaxi, Taicang, Jiangsu, China.
The facilities are accredited by the FCC (registration number 930979) and Innovation, Science and Economic Development Canada (filing number 33038) for radiated and conducted emission measurements.
General Product Information
The EUT (Equipment Under Test) is a LED lamp supporting Bluetooth, Zigbee, and Thread technologies. This report focuses on evaluating the RF characteristics of the Thread implementation.
Ratings and System Details
| General Description of EUT | Self-ballasted LED lamps |
| Product Name | LED2407G8NA |
| Operation Voltage | AC 120V, 60Hz |
| Test Voltage | DC 3.3V (for RF conducted and radiated test), AC 120V, 60Hz (for conducted emission test) |
| RF Technical | 1) BLE, 2) Zigbee, 3) Thread |
| RF IC (Thread) | SiMG301 |
| Frequency Range (Thread) | 2405~2480MHz |
| Modulation Type (Thread) | OQPSK |
| Antenna Type | PCB Antenna |
| Antenna Gain | -1.06 dBi (declared by client) |
Operation Channel List (Thread)
| Channel | Frequency [MHz] | Channel | Frequency [MHz] | Channel | Frequency [MHz] | Channel | Frequency [MHz] |
|---|---|---|---|---|---|---|---|
| 11 | 2405 | 15 | 2425 | 19 | 2445 | 23 | 2465 |
| 12 | 2410 | 16 | 2430 | 20 | 2450 | 24 | 2470 |
| 13 | 2415 | 17 | 2435 | 21 | 2455 | 25 | 2475 |
| 14 | 2420 | 18 | 2440 | 22 | 2460 | 26 | 2480 |
Independent Operation Modes
Test frequencies include the lowest channel (2405 MHz), middle channel (2445 MHz), and highest channel (2480 MHz). The basic operation modes are: A. Thread transmitting mode, B. Radio operating mode.
Noise Generating and Noise Suppressing Parts
Refer to the Circuit Diagram.
Test Set-up and Operation Modes
The EUT was configured to measure its maximum power level. Test modes were adapted according to the instructions for use.
Testing followed procedures outlined in ANSI C63.10: 2013. Test software used was sscom 5.13.1.
| Mode | Power Parameter Setting Value |
| Thread | 10 |
Special Accessories and Auxiliary Equipment
| Equipment | Manufacturer | Model |
|---|---|---|
| Laptop | Lenovo | 21AJ-S57N0J |
| Mobile phone | Apple | iPhone 15 |
| Loudspeaker | Apple | HomePod mini |
| Remote control | IKEA | E2489 |
Countermeasures to achieve EMC Compliance
Null.
Test Results
5.1 Conducted Testing at Antenna Port
5.1.1 Antenna Requirement
Result: Pass
The EUT features an internal PCB antenna with a declared gain of -1.06 dBi, permanently attached and not replaceable. This complies with the relevant provisions.
| Requirement | Results | Verdict |
|---|---|---|
| FCC 15.203 – Antenna Requirement 1: No antenna other than that furnished by the responsible party shall be used with the device. | Antenna type: PCB antenna | Pass |
| FCC 15.204 – Antenna Requirement 2: An intentional radiator may be operated only with the antenna with which it is authorized. | Only one PCB antenna can be used | Pass |
| RSS-Gen 6.4 – External Control: The device shall not have any external controls accessible to the user that enable it to be adjusted, selected or programmed to operate in violation of the regulatory requirements. | The device does not have any transmitter external controls accessible to the user that can be adjusted and operated in violation of the limits of this standard. | PASS |
| RSS-Gen 6.8 – Antenna Requirement: When measurements at the antenna port are used to determine the RF output power, the effective gain of the device's antenna shall be stated. | a) Antenna Type: PCB Antenna b) Manufacture: N/A c) Model No.: N/A d) Gain with reference to an isotropic radiator: -1.06 dBi | PASS |
5.1.2 6dB & 99% Bandwidth
Result: Pass
Date of testing: 2025-05-08
Ambient temperature: 23.5°C
Relative humidity: 59.5%
Atmospheric pressure: 101kPa
Test requirement: FCC Part 15.247(a)(2), RSS-247 Issue 3, August 2023, Clause 5.2(a), RSS-Gen Issue 5, Amendment 2, February 2021, Clause 6.7
Test procedure: ANSI C63.10: 2013
Test voltage: DC 3.3V
Test modes applied: A
6dB Bandwidth
2405MHz: Bandwidth: 1.750000 MHz, Max Level: 5.4 dBm. Verdict: PASS.
Graphical representation shows the bandwidth measurement for 2405MHz.
2445MHz: Bandwidth: 1.750000 MHz, Max Level: 5.7 dBm. Verdict: PASS.
Graphical representation shows the bandwidth measurement for 2445MHz.
2480MHz: Bandwidth: 1.750000 MHz, Max Level: 5.4 dBm. Verdict: PASS.
Graphical representation shows the bandwidth measurement for 2480MHz.
99% Occupied Channel Bandwidth
2405MHz: Bandwidth: 2.235000 MHz. Verdict: PASS.
Graphical representation shows the 99% occupied bandwidth measurement for 2405MHz.
2445MHz: Bandwidth: 2.235000 MHz. Verdict: PASS.
Graphical representation shows the 99% occupied bandwidth measurement for 2445MHz.
2480MHz: Bandwidth: 2.235000 MHz. Verdict: PASS.
Graphical representation shows the 99% occupied bandwidth measurement for 2480MHz.
5.1.3 Output Power
Result: Pass
Date of testing: 2025-05-08
Ambient temperature: 23.5°C
Relative humidity: 59.5%
Atmospheric pressure: 101kPa
Test requirement: FCC Part 15.247(b)(3), RSS-247 Issue 3, August 2023, Clause 5.4(d)
Test procedure: ANSI C63.10: 2013
Test voltage: DC 3.3V
Test modes applied: A
| Frequency [MHz] | Peak Conducted Output Power [dBm] | Limit [dBm] |
|---|---|---|
| 2405 | 9.8 | 30 |
| 2445 | 9.9 | 30 |
| 2480 | 9.6 | 30 |
Notes: Cable loss was accounted for. EIRP (Effective Isotropic Radiated Power) is below 4 W (36dBm).
5.1.4 Power Spectral Density
Result: Pass
Date of testing: 2025-05-08
Ambient temperature: 23.5°C
Relative humidity: 59.5%
Atmospheric pressure: 101kPa
Test requirement: FCC Part 15.247(e), RSS-247 Issue 3, August 2023, Clause 5.2(b)
Test procedure: ANSI C63.10: 2013
Test voltage: DC 3.3V
Test modes applied: A
2405MHz: PSD: -1.824 dBm. Verdict: PASS.
Graphical representation shows Peak Power Spectral Density for 2405MHz.
2445MHz: PSD: -1.643 dBm. Verdict: PASS.
Graphical representation shows Peak Power Spectral Density for 2445MHz.
2480MHz: PSD: -2.014 dBm. Verdict: PASS.
Graphical representation shows Peak Power Spectral Density for 2480MHz.
5.1.5 Conducted Band Edge and out-of Band Emissions
Result: Pass
Date of testing: 2025-05-08
Ambient temperature: 23.5°C
Relative humidity: 59.5%
Atmospheric pressure: 101kPa
Test requirement: FCC Part 15.247(d), RSS-247 Issue 3, August 2023, Clause 5.5
Test procedure: ANSI C63.10: 2013
Test voltage: DC 3.3V
Test modes applied: A
Graphical representations show reference levels for conducted band edge and out-of-band emissions at 2405MHz, 2445MHz, and 2480MHz.
Graphical representations show conducted spurious emissions for 2405MHz, 2445MHz, and 2480MHz across different frequency ranges.
Graphical representations show conducted band edge emissions for 2405MHz and 2480MHz.
5.2 Emission in the Frequency Range up to 30MHz
5.2.1 Conducted Emission
Result: N/A
Date of testing: 2025-04-11
Ambient temperature: 20.1°C
Relative humidity: 49.5%
Atmospheric pressure: 101kPa
Test requirement: FCC Part 15.207 (a), RSS-Gen Issue 5, Amendment 2, February 2021, Clause 8.8
Test procedure: KDB 558074 D01v05r02, ANSI C63.10: 2013
Test voltage: AC 120V, 60Hz
Test modes applied: B
Graphical representations show conducted emission levels for Line (L) and Neutral (N) conductors across the frequency range. Tables detail QuasiPeak and Average measurements against limits.
5.3 Emission in the Frequency Range above 30MHz
5.3.1 Radiated Band-Edge
Result: Pass
Date of testing: 2025-04-26
Ambient temperature: 23.9°C
Relative humidity: 59.2%
Atmospheric pressure: 101kPa
Test requirement: FCC Part 15.247(d), FCC Part 15.205(a), FCC Part 15.209(a), RSS-Gen Issue 5, Amendment 2, February 2021, Clause 8.9, RSS-Gen Issue 5, Amendment 2, February 2021, Clause 8.10, RSS-247 Issue 3, August 2023, Clause 5.5
Test procedure: ANSI C63.10: 2013
Test voltage: DC 3.3V
Test modes applied: A
Graphical representations show radiated band-edge emissions for 2405MHz (Horizontal and Vertical polarization) and 2480MHz (Horizontal and Vertical polarization).
5.3.2 Radiated Spurious Emission
Result: Pass
Date of testing: 2025-05-11
Ambient temperature: 22.5°C
Relative humidity: 59.2%
Atmospheric pressure: 101kPa
Test requirement: FCC Part 15.247(d), FCC Part 15.209(a), RSS-Gen Issue 5, Amendment 2, February 2021, Clause 8.9, RSS-247 Issue 3, August 2023, Clause 5.5
Test procedure: ANSI C63.10: 2013
Test voltage: DC 3.3V
Test modes applied: A
Note: For the frequency range from 18GHz to 25GHz, no emission was found.
Graphical representations show radiated spurious emissions for 2405MHz, 2445MHz, and 2480MHz across various frequency ranges (30MHz-1GHz, 1GHz-7GHz, 7GHz-18GHz) for both Horizontal and Vertical polarizations.
