The UV Light Accelerated Weathering Tester is a highly efficient and easy to use a testing instrument that can be used for accurate analysis of the effect of the weathering factors on a material or product. The Factors like moisture, sunlight, temperature, etc. can cause degradation of the polymers such as fading, cracking, flaking, etc. In order to ensure long life and better performance of the products, it is important to test the effects of the factors on a particular product or material. The instrument is provided with a fluorescent UV light that is that can exactly emulate the effects of the sunshine, while the water spray and condensation function can easily replicate the rain and dew factors. The temperature and irradiance can be controlled easily. The testing procedure is generally conducted under strong irradiance of ultraviolet light with up to 100% humidity. The instrument is easy to operate and provides an economical way of testing the materials and products. It is an ideal testing instrument for textiles, paints, rubber and plastic industries.