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News | The US Department of Energy releases the final version of the GSL General Lighting bulb testing procedure regulations!
Author.
LCS
Source:
Post time:
2025-02-22
On January 16, 2025, the US Department of Energy released the final version of the regulations on testing procedures for General Lighting Bulbs (GSLs). The Energy Policy and Conservation Act (EPCA) guides the Department of Energy (DOE) to initiate the GSL rulemaking cycle and decide whether to modify the currently effective GSL standards and testing methods.
DOE evaluates the testing procedures of different products at least once every 7 years to determine whether the modified testing procedures are more accurate in meeting actual requirements, technically feasible, and economically reasonable. In the final specification of the Federal Register this time, regarding the testing procedure for General Lighting Bulbs (GSLs), DOE has specified Appendix W in Subpart B of Part 430, Provide a final explanation of the testing methods for Appendix BB and Appendix DD.
The effective date of these rules is February 18, 2025.
Starting from July 15, 2025, the revised testing procedure will be mandatory and effective
The revision of DOE's testing procedure for General Lighting Bulbs (GSLs) is as follows:
DOE has modified the testing methods in Subpart B of Part 430, and the testing standards are as follows:
appendix W--Uniform Test Method for Measuring the Energy Consumption of Compact Fluorescent Lamps
Appendix W - Unified Test Method for Energy Consumption Measurement of Compact Fluorescent Lamps;
appendix BB--Uniform Test Method for Measuring the Input Power, Lumen Output, Lamp Efficacy, Correlated Color Temperature (CCT), Color Rendering Index (CRI),Power Factor, Time to Failure, and Standby Mode Power of Integrated Light-Emitting Diode (LED) Lamps
Appendix BB - Unified Test Method for Input Power, Luminous Flux, Light Efficiency, Color Temperature, Display Finger, Power Factor, Failure Time, and Standby Power Consumption of Integrated LED Bulbs;
appendix DD-- Uniform Test Method for Measuring the Energy Consumption and Energy Efficiency of General Service Lamps That Are Not General Service Incandescent Lamps, Compact Fluorescent Lamps, or Integrated LED Lamps
Appendix DD - Unified Test Method for Energy Consumption and Efficiency of General Lighting Lamps Other than Universal Incandescent Lamps, Compact Fluorescent Lamps, and Integrated LED Bulbs;
The specific revisions for Appendix W, Appendix BB, and Appendix DD are as follows:
1. Conduct the test in the maximum power mode and not in the colored lamp state. If multiple modes (such as color temperature CCT adjustable or digital CRI adjustable) appear at the same maximum power, one of the modes can be selected for testing. The test report needs to specify which color temperature or display mode to choose for testing;
2. Lights with additional features that do not affect light output (such as not turning on/off lights, changing brightness, changing light color, etc.) (such as cameras, speakers, purifiers) need to be tested under conditions where the additional features are turned off as much as possible, provided that the product cannot be permanently altered. Permanent alteration of the product includes cutting wires, using electric magnets, or damaging the structure of the light, and does not include the use of connectable nuts, fasteners, or screws. If it is not possible to turn off these features without permanently changing the product, the energy consumption of these additional features must be included in the testing, and the testing report needs to indicate which features have been turned off and which ones are still on.
In addition, specific revisions specifically for Appendix DD are as follows:
1. For non integrated LED lights, remove the instructions for testing under the manufacturer's claimed input voltage and current;
2. For non integrated lamps, it is required to use fluorescent lamp ballasts, HID lamp ballasts, or external LED drivers for testing, with priority given to the manufacturer's list of compatible ballasts and drivers available on the market;
3. Specify the starting method and ballast factor for the ballasts used in the test. Non integrated lamps should be tested in the following order of priority: if all ballasts in the manufacturer's publicly available compatibility list use the same starting method, select the ballast with that starting method for testing; If multiple ballast factors are used for ballasts in the publicly available compatibility list provided by the manufacturer, the ballast factor should be selected based on the different types of lamps in Table 3.1 (if the ballast factor in the compatibility list does not include the ballast factor in the table, the manufacturer should choose the ballast factor closest to that in Table 3.1); If the ballasts in the publicly available compatibility list provided by the manufacturer use multiple starting methods, select the corresponding starting method based on the lamp type in Table 3.2 (if the starting method in Table 3.2 is not included in the ballasts in the compatibility list, the manufacturer may choose another starting method); If the above conditions cannot be met and the lamp only operates under low-frequency, preheating starting ballasts, then test at the voltage and current declared by the manufacturer.
4. Specify the maximum number of fluorescent lamp ballasts, HID lamp ballasts, or externally driven lamps that can be operated in the test. When testing the luminous flux, place one lamp in the integrating sphere and test the luminous flux of the other lamps outside the integrating sphere. Then divide the power and current by the number of lamps to obtain the test value of a single lamp.
Requirements for ballast factors for different types of lamps:
Starting methods for ballasts of different types of lamps:
Comparison between the updated testing method and the existing testing method:
The new regulation on the expanded definition of GSL general lighting bulbs released by the US Department of Energy (DOE) means that all common general lighting bulbs currently on the market must meet DOE testing and certification requirements and provide proof of compliance with DOE standards. Each manufacturer should complete the DOE testing and certification of GSL products as soon as possible to avoid any subsequent impact on product sales in the US market after the new regulations come into effect.
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