How long is the service life of ultraviolet lamp?

The service life of ultraviolet disinfection lamp is generally about 2-4 years.

After the ultraviolet disinfection lamp is used for a period of time, the disinfection ability will gradually decrease. Generally, after continuous use for about 2,000 hours, the disinfection capacity of ultraviolet disinfection lamps will drop to about 70%-80% of the original, and the service life of imported ultraviolet disinfection lamps will be longer.

The ultraviolet disinfection lamps used in China are:

(1) ordinary straight tube hot cathode low-pressure mercury ultraviolet disinfection lamp. The lamp tube is made of timely glass or other glass with high ultraviolet transmittance, and its power is 40W, 30W, 20W, 15W, etc. ?

(2) High-intensity ultraviolet disinfection lamp. The ultraviolet radiation intensity of 253.7nm (measured at the vertical distance from the center of the lamp tube 1m) requires a lamp with power of 30W > 170μ w/cm2; 1 1W lamp, > 40μ w/cm2.

3) Low ozone ultraviolet disinfection lamp. It is also a hot cathode low-pressure mercury lamp, which can be vacuum tube type or H type. Due to the special technology and lamp materials, the ozone output is very low, and the ozone output is required to be <1mg/h.

(4) Ultraviolet air sterilizer. Made of low ozone ultraviolet germicidal lamp, it can be used for indoor air disinfection under manned conditions.

(5) Ultraviolet surface sterilizer. Using low ozone and high intensity ultraviolet germicidal lamp can quickly achieve satisfactory disinfection effect.

(6) ultraviolet disinfection box. Using high ozone and high intensity ultraviolet sterilization or straight tube high ozone ultraviolet manufacturing, on the one hand, using the synergistic sterilization effect of ultraviolet and ozone, on the other hand, using ozone to sterilize the parts that cannot be irradiated by ultraviolet.