The PL-X300DF xenon lamp light source photothermal catalytic device is an ideal light source for simulating sunlight. The light source is equipped with an imported 300W high-voltage short arc xenon lamp, which forms arc discharge under high-frequency and high-voltage excitation. High voltage short arc spherical xenon lamp is a point light source with a very small emission point. When ignited, it emits strong and stable light waves, with a strong continuous spectrum from ultraviolet to near-infrared, and stable output. It is widely used in research fields such as photocatalysis, industrial catalysis, photocatalytic hydrogen production, photoelectrochemical catalysis, photochemical synthesis, photodegradation of pollutants, water pollution treatment, biological illumination, optical detection, and various simulated sunlight visible light accelerated experiments