There are inner and outer affecting the life of LED display. The inner factors include the performance of LED light-emitting diodes, external part and fatigue resistance. Besides, the outer ones mean the external environment condition. Bellow is the details for what affects the service life. The influences of external components In addition to the LED lighting devices, LED display also adopts many other peripheral components, including circuit boards, plastic shell, switching power supplies, connectors, chassis and more. If any components appeared problems, it will directly affect the service life of the LED display. Therefore, the display's lifetime is determined by the life of the most critical components with the relatively short life. For example, if the LED part, switching power supply and metal case is selected according to standard material with the service life of up to eight years, and the circuit board can support their work for three years, then the LED display will be coming the lifetime with only three years. The performance of LED devices LED light-emitting devices is the most critical parts for the life of the LED display. For LED, there are mainly the following indicators: attenuation characteristics, water vapor permeability and UV resistance. If the indicators are not qualified, however, it is applied to the display, it will cause a lot of quality accident, seriously affecting the service life. Fatigue resistance The fatigue resistance of the LED display depends on the production process. The parts with poor treatment process are difficult to guarantee, which will always cause he surfaces cracks in the changes of temperature and humidity, causing performance degradation protection. Therefore, the production process of LED screen is also a key factor for the lifetime. The production process includes component storage and pretreatment, the furnace welding, waterproof function and so on. For the LED display manufacturers, the accumulation of experience is very important. Work environment The work environment is an important factor affecting the life of the display. Due to different applications, the operating conditions of display vary. For an indoor environment, the temperature difference is small, no snow and UV impact. But the temperature difference from outdoor is up to 70 degrees, plus wind and rain, which would exacerbate the display aging. The service life of LED display is determined by many factors, but end of life is caused by many factors may be a continuation of life by constantly replacing parts (such as switching power supply). But the LED part can not be replaced a lot. If the LED part stop working, the life of the whole LED display will be ended.