The realization of xenon lamp light source must depend on instruments, so a good light source must depend on suitable instruments. Is there any good auxiliary instrument for xenon lamp light source? The so-called good xenon lamp light source auxiliary instrument is suitable and inexpensive, because everyone's standards are different, so we will start with the right one. Xenon lamp light source is one of the necessary instruments in modern scientific research laboratory, which is highly valued by researchers. Because there are many kinds of xenon lamp light sources, you can consult the relevant experimental literature or consult the instrument manufacturer directly before choosing the instrument to get a general understanding of the required spectral range, irradiation area and light power (also known as light intensity) in order to choose a more suitable light source. Xenon lamp light source can take many forms, such as: xenon lamp light source convergence point light source is usually used for monochromator beam splitting, optical fiber is introduced or energy concentration effect of focusing point (such as thermal effect) is used, and xenon lamp light source diverging from the center usually does not do any treatment (light is diffused to the whole space in the form of spherical wave). In photochemistry, the cold trap and the reactor usually work together to radiate light evenly to the reflective material, forming a so-called internal lighting system (in the whole system, the light is radiated from the inside). The parallel light source of the xenon lamp light source is usually a light bulb processed by optical devices, but an ellipsoidal reflector is used when high energy is needed. In photochemistry, the parallel light source and the part reflecting the sample can form an external illumination system (light is irradiated from the outside to the inside in the form of parallel beams). The common description of xenon lamp light source refers to electric power. In fact, the information expressed by electric power is relatively simple, so we should pay attention to the optical power and the band conditions of optical power when selecting the type. Optical power is related to many factors, such as electric power, optical structure, device materials, instrument structure and so on. The partial spectral distribution of xenon lamp light source and xenon lamp continuous spectrum is almost independent of the change of lamp input power, and the spectral energy distribution changes little during the service life. The light source and electrical parameters of xenon lamp are consistent, and the working state is relatively less affected by the change of external conditions.