Without an existing industry standard, energy-savings programs in the US, such as Energy Star and the DesignLights Consortium (DLC), have established thresholds based on a simple mathematical model to make predictions, which are then used to qualify new products that are submitted for certification. The programs also have predetermined set periods of time (number of hours) over which test data for new products is collected. However, the duration of the test is relatively short in comparison to the manufacturers’ claimed life of LEDs.
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