TÜV Rheinland EMC Test Report

General Product Information

The Equipment Under Test (EUT) is an ordinary self-ballasted LED lamp intended for lighting and similar uses. It operates in basic modes of "ON" and "OFF". The rated input is AC 120 V, 60 Hz, 37 mA, with a rated power of 2.4 W. The highest frequency generated or used in the device is less than 108 MHz. Submitted documents include the circuit diagram, user's manual, and rating label.

Test Setup and Operation Modes

The EUT was configured to measure its highest possible emission level. Tests were conducted on 2024-11-06 for both conducted and radiated emissions.

Conducted Emission Test Setup

The setup involved the EUT, a Line Impedance Stabilization Network (LISN), an EMI receiver, a computer, a transformer, and a power supply. The EUT was placed on a wooden support 0.8 meters away from the LISN. The power cord was bundled to a length between 0.3 m and 0.4 m. Tests were performed on the neutral and phase lines.

Radiated Emission Test Setup

The radiated disturbance test was conducted in a semi-anechoic chamber at a distance of 3 meters. The EUT was placed on an 80 cm wooden support. The wooden support was rotated 360 degrees, and the antenna height was varied from 1 m to 4 m to find maximum disturbance. Tests were performed using both horizontal and vertical antenna polarizations.

No special test software, accessories, or countermeasures were employed to achieve EMC compliance.

Conducted Emission Results (0.15 MHz - 30 MHz)

Conducted emission tests were performed using a 9 kHz bandwidth receiver. The tests were conducted in a shielded room with an input voltage of AC 120 V, 60 Hz, and the EUT operating in "Lighting on" mode. Ambient conditions were 21.5 °C and 48% relative humidity. The expanded measurement uncertainty was 2.33 dB.

The minimum margin to the limit was 40.64 dB at 15.321750 MHz.

Figure 1: Spectral Diagrams, Conducted Emission, 150 kHz – 30 MHz, Line L

This figure displays the measured quasi-peak and average emission levels against frequency. The quasi-peak limit line is shown in red, and the average limit line is shown in pink. Data points represent measured values. The table below provides detailed results:

Figure 2: Spectral Diagrams, Conducted Emission, 150 kHz – 30 MHz, Line N

This figure displays the measured quasi-peak and average emission levels against frequency for the neutral line. The quasi-peak limit line is shown in red, and the average limit line is shown in pink. Data points represent measured values. The table below provides detailed results:

Radiated Emission Results (30 MHz - 1000 MHz)

Radiated emission tests were performed in a semi-anechoic chamber with a 120 kHz bandwidth receiver. The input voltage was AC 120 V, 60 Hz, with the EUT in "Lighting on" mode. Ambient conditions were 20.5 °C and 55% relative humidity. The expanded measurement uncertainty was 5.40 dB.

The minimum margin to the limit was 7.80 dB at 31.333750 MHz.

Figure 3: Spectral Diagrams, Radiated Emission, 30 MHz – 1000 MHz, Horizontal Polarization

This figure shows the measured quasi-peak emission levels against frequency for horizontal polarization. A red limit line indicates the maximum allowed emission level. Data points represent measured values. The table below provides detailed results:

Figure 4: Spectral Diagrams, Radiated Emission, 30 MHz – 1000 MHz, Vertical Polarization

This figure shows the measured quasi-peak emission levels against frequency for vertical polarization. A red limit line indicates the maximum allowed emission level. Data points represent measured values. The table below provides detailed results:

Test and Measurement Instruments

The following instruments were used during the tests:

Remarks

All test equipment used was calibrated according to the laboratory's calibration program and meets the requirements of the test programs. Traceability of equipment is ensured by 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. Verification is the responsibility of the document user. Clients can request confirmation of the digital signature's validity from TÜV Rheinland's Sales department, which may incur an environmental fee.

Test clauses marked with '*' were subcontracted to qualified subcontractors as described in the respective test clauses. Deviations from test specifications or customer requirements are listed in the report.

The decision rule for conformity statements, based on numerical results, follows the "Zero Guard Band Rule" and "Simple Acceptance" as per ILAC G8:2019 and IEC Guide 115:2021, unless otherwise specified. Measurement uncertainty is not taken into account or declared in the report.