TOC lamp is the equipment for treating TOC in water. It uses ultraviolet lamp with wavelength of 65438±085nm to directly irradiate pure water. At this time, the probability of TOC directly colliding with photons in water is very low. At this time, it is difficult for TOC impurities in water to directly absorb the photon energy of 185nm and decompose to form CO2 to escape and be degraded. Therefore, we generally think that when TOC in water is degraded by ultraviolet light with the wavelength of 185nm, the wavelength is 65438+.