The UV aging test chamber is a threat that uses ultraviolet light to simulate damage to durable materials caused by sunlight. These lamps are electrically similar to ordinary lighting lamps, but they emit mainly ultraviolet light instead of visible light or infrared light.
For different application conditions, different spectra are required and different types of lamps are required. The UVA-340 lamp provides the best simulated sunlight in the short wavelength band of UV light. The spectral energy distribution (SPD) of UVA-340 is very good with sunlight in the range from the cut-off point of sunlight to about 360 nm. UV-B lamps are also widely used in UV aging test chambers. They cause faster aging of materials than UV-A lamps, but their shorter wavelengths than the sun cutoff point can have unrealistic results for many materials.
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