What is the service life of ultraviolet disinfection lamp?

Generally, it is made in China for about two years and imported for about five years. Generally, the domestic brand is 1000-2000H, but after 1000H, the bactericidal ability is only about 70-80% of the original. Imported brand lights are much better. Generally using 5000-8000H and 2000H, the general sterilization ability is still above 90%. The other is maintenance. Whether the lamp is clean or not, it is best to clean the lamp regularly (wipe it with alcohol cotton, not touch the glass). If the light transmittance of the lamp tube is not good, it will directly affect the sterilization ability. Generally, 30-50% indelible dirty areas will be replaced.