The UV machine uses UVB-313 fluorescent tubes
UV aging testing machine UVB-313 lamp tube: The short wave ultraviolet light generated by the UVB-313 lamp tube is stronger than the solar ultraviolet light that usually shines on the Earth's surface, which can greatly accelerate material aging.The UV machine uses UVB-313 fluorescent tubes

The difference between UVA-340 ultraviolet lamp and UVB-313 ultraviolet lamp:
UV wavelength range: 290nm to 400nm
1. The UVA-340 ultraviolet lamp can simulate the ultraviolet part of sunlight very well;
The UVA-340 ultraviolet lamp can simulate the ultraviolet part of sunlight very well, and is suitable for simulating spectra in the wavelength range of 315-400nm., The spectral energy is mainly concentrated at the wavelength of 340nm. Therefore, it is designated as UVA-340 ultraviolet lamp tube

2. The UVB313 ultraviolet lamp is used for large-scale artificial accelerated testing, which can quickly obtain aging results.
The short wavelength used by UVB313 is shorter and more destructive than the UV light waves commonly found on the Earth's surface. UVB313 simulates the ultraviolet spectrum of sunlight with a wavelength of 290-315nm, and the spectral energy is mainly concentrated at the wavelength of 313nm. Therefore, it is designated as a UVB31 lamp.

Selection of UV lamp tubes
1. Most experiments require the use of UVA-340 ultraviolet lamps, which simulate the situation after being exposed to sunlight at noon in summer and are more consistent with the effect of outdoor sunlight exposure to ultraviolet rays.
2. If the experiment requires an accelerated aging rate, it is recommended to use UVB-313EL lamps. These lamps usually accelerate the aging rate of materials, but may differ from the aging results in nature.