LED lights light failure problems

Now, some businesses, in order to reduce costs, on the use of hundreds of φ5 small power LED. However, this low-power LED light is a very serious decline, according to the light fades to 80% of the life span of only 1,000 hours. Therefore, as a necessary long-term use of LED bulb is absolutely not allowed to use such small power LED. As a high-power LED, the light fades would be much better. However, many domestic manufacturers still only be 10,000 hours decreased by 10%. Can not meet the requirements.
In fact, LED problem is due to the long life of work at high temperatures and formation.
When the junction temperature from 115 ℃ to 135 ℃, it will make the life expectancy from 50,000 hours to 20,000 hours. At present, the LED luminous efficiency has not increased to a high level, can only try to improve its heat to extend the car LED life.
Using a loop heat pipe cooling technology can put LED's junction temperature cools to 65 ℃, which greatly improves the service life of LED lamps. After three years of their actual test showed that working 12 hours a day, less than 3% of its lumen. Expected to work a decade later, only 20% of its lumen. This basically solved the problem of life.