Used for artificial aging test of various textile, dye, leather, plastic, paint, coatings, automotive interior accessories, geotextiles, electrical and electronic products, color building materials and other materials simulated daylight light can also complete the color fastness test to light and weather. By setting the conditions of light irradiance, temperature, humidity and rain in the test chamber, the simulated natural environment required for the experiment is provided to test the performance changes of the material such as color fading, aging, transmittance, peeling, hardening, softening and cracking.