Answer: 25,000 to 50,000 hours.
Answer analysis: The life of LED lamps can usually reach a fairly long range, which is affected by many factors, including but not limited to product brand, quality, use environment, heat dissipation conditions, and the stability of the driving power supply.
In general, the expected life of LED lamps is between 25,000 and 50,000 hours, which is a relatively wide estimate.
However, some manufacturers may claim that their product life can reach longer time, such as 100,000 hours, but this usually requires specific use conditions to achieve.
It is worth noting that the life of LED lamps is usually measured by L70 life, that is, the time that the luminous flux of the LED lamp remains above 70% of its initial luminous flux during continuous use.
This time range is roughly between 20,000 and 50,000 hours, but the specific value will vary according to factors such as manufacturer, use environment, temperature and humidity.
In addition, textbooks or some materials often mention that the life of LED lamps is 50,000 hours, which means that if it is lit 24 hours a day, the LED lamp can be used continuously for about 5 years. However, in actual applications, LED lamps usually do not light up for such a long time, and will be affected by the life of other components such as the power adapter, so the actual service life may be lower than this theoretical value.
In general, the life of LED lamps is relatively long, but the specific value will be affected by many factors.
In order to ensure that the LED lamp can reach its expected life, users should pay attention to the choice of use environment, the improvement of heat dissipation conditions, and the selection of high-quality LED lamps and power adapters.
At the same time, reasonable control of the number of switching times and working hours of LED lamps can also help to extend their service life.