The life of the led module changes according to the temperature (ambient and self-generated).
The curve depends of the color and the supply voltage
In attachment, you can find the curve for green color in 24V (ZBVB3)
The service life, given in the catalog for a rated voltage and a temperature of 25°C, is 100000 hours: We warranty that, after 100000 hours, the perceived brightness is above 50% of the nominal one
For your information, at 25°C of ambient temperature, the temperature increase of the led when the light is on is less than 10°C
The product can be used till an ambient air temperature around the device of 70°C