XSY-HBDU150W-XXKAA -MZPT, where: XXK=30K, 40K,50K,57K
50000 Hours Projected Lumen Maintenance At 70° C
The test method is designed to address the lumen maintenance of LED luminaires at a specific ambient temperature. The lumen maintenance is defined as the time when light output of half the product population has fallen below 70% of average initial light output for any reason. Projected lumen maintenance is based on LM-80 data of the LED module, driver reliability data in specification sheet and endurance testing.
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