The DIN 75220-1992 standard is used for sun-simulated aging testing of automotive components, mainly to examine the light-resistant aging performance of components. The standard recommends testing with Xenon-arc lamps to better simulate the ultraviolet and visible parts of sunlight. The xenon arc is highly compatible with sunlight and effectively evaluates the aging performance of components under long-term exposure to sunlight. The standard is widely used in the automotive industry for quality control and component durability testing.