The photochemical reactor (also known as the photolysis instrument) can achieve various photochemical experiments, widely used in chemical synthesis, photodegradation, gas-liquid reactions, liquid-phase media, fixed or flowing systems, simulated ultraviolet and visible light irradiation, and photochemical reactions under conditions such as whether the reaction vessel is loaded with TiO2 photocatalyst. It has the functions of providing samples for analyzing reaction products and free radicals, determining reaction kinetic constants, measuring quantum yields, and other research fields such as environmental protection and life sciences. The stirring photochemical reactor improves experimental efficiency and saves experimental time by simultaneously reacting reactants. The chemical reactor effectively ensures consistency in experimental conditions for multiple samples. Instrument configuration: The instrument is a solid desktop with five independently controlled lamps for surrounding illumination, which can be controlled by the number of lamps according to actual requirements (each lamp can be matched according to different customer needs). It has a high-power magnetic stirring light source controller panel: 220V power switch, lamp switch, stirring. The back of the instrument has a 220V power cord, a low-voltage ultraviolet lamp (can be matched with other light sources), a power of 8W, a wavelength of 254nm, and a quartz reaction bottle.