In general descriptions, LEDs can be used for more than 50,000 hours, and some manufacturers claim that their LEDs can operate for about 100,000 hours. The main problem in this regard is that the LED is not simply no longer operating, and its additional service life cannot be calculated by the measurement method of traditional lamps.
In fact, when testing the service life of an LED, no one will always stay around waiting for it to stop operating. However, there are still other methods to measure the service life of LEDs. The reason why LED is durable is that it will not cause the problem of filament fusing. The LED will not stop operating directly, but it will gradually degrade as time passes.
There are speculations that high-quality LEDs can maintain more than 60% of the initial lamp brightness after 50,000 hours of continuous operation. Assuming that the LED has reached its extra lifespan, in fact, it may still emit light, but the light is very weak.