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LM-80 and LM-84 are both standards used in the lighting industry, but they serve different purposes and are applied in different stages of LED product testing.

LM-80: Measuring Lumen Maintenance of LED Light Sources

Purpose and application

The LM-80 standard is specifically designed to assess the lumen maintenance of LED packages, arrays, and modules. This is crucial because the performance of LEDs can degrade over time, and understanding this degradation is essential for predicting the lifespan and reliability of LED products.

Testing procedure

  • Duration: LM-80 tests are typically conducted over a period of 6,000 hours or more. This extended testing period allows for a thorough evaluation of how the LED light sources maintain their light output over time.
  • Conditions: the tests are performed under controlled temperature conditions, which are specified in the standard. This ensures that the results are consistent and reproducible.
  • Data collection: during the testing period, data on light output (lumens) is collected at regular intervals. This data is then used to create graphs and tables that show the lumen maintenance over time.

Importance

The data obtained from LM-80 tests is used to calculate the lumen depreciation of LED light sources. This information is critical for manufacturers to predict the long-term performance of their products and to provide accurate information to consumers about the expected lifespan of LEDs.

LM-84: Measuring Lumen Maintenance of LED Luminaires and Retrofit Kits

Purpose and application

The LM-84 standard is used to evaluate the lumen maintenance of complete LED luminaires and retrofit kits. This includes not only the LED light sources but also the driver, optics, and other components that make up the luminaire.

Testing procedure

  • Duration: similar to LM-80, LM-84 tests are conducted over an extended period, typically 6,000 hours or more. This allows for a comprehensive assessment of the entire luminaire’s performance.
  • Conditions: the tests are performed under specified conditions, including temperature and electrical parameters, to ensure consistency and reproducibility.
  • Data collection: during the testing period, data on light output (lumens) is collected at regular intervals. This data is used to determine how the luminaire maintains its light output over time.

Importance

The results from LM-84 tests provide valuable information about the overall performance and degradation of LED luminaires. This helps manufacturers to identify potential issues with their products and to make improvements to enhance durability and longevity. Additionally, consumers can use this information to make informed decisions when purchasing LED luminaires.

Comparison and Conclusion

While both LM-80 and LM-84 standards are essential for ensuring the quality and reliability of LED lighting products, they serve different purposes:

  • LM-80 focuses on the individual LED components, providing data on their lumen maintenance.
  • LM-84 evaluates the complete luminaire, including all its components, to assess the overall performance and degradation.

By adhering to these standards, manufacturers can ensure that their LED products meet high-quality standards, and consumers can have confidence in the longevity and performance of the LED lighting solutions they purchase.

About us

GTG Group is well-versed in the LM-80 and LM-84 tests, we’re capable of validating that your LED components and LED luminaires are comply with regulatory standards, ensuring that your LED products are of the highest quality and ready for the market. Interested in learning more? Please fill out our short form, our expert will be glad to assist further.

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© 2012-2024 GTG Group. All rights reserved.