How to choose ultraviolet lamp

At present, the UV disinfection lamps sold on the market are mostly low pressure mercury lamp light sources with mature technology. Low pressure mercury lamp mainly has two kinds of glass materials - quartz glass and high boron glass. In a word, the UV transmittance and radiation intensity of high boron glass are lower than those of quartz glass. When you buy a domestic brand UV germicidal lamp, you must choose a quartz glass tube with weak UV penetration, which cannot penetrate ordinary glass.
Ordinary consumers can't tell the difference between quartz glass, high boron glass and ordinary glass, so when buying ultraviolet disinfection and sterilization lamps (tubes), people should not choose miscellaneous brands for cheap. When they buy them back, they think that if they light up, they can sterilize. In fact, they may have no effect and waste money.