Among the materials used for the manufacture of ultraviolet lamps, ultraviolet lamps made of high boron glass have a low ultraviolet transmittance (70% ultraviolet transmittance) and are easy to degenerate (30%＜200 hours), while ultraviolet lamps made of quartz glass have a high ultraviolet transmittance (90% ultraviolet transmittance), low light attenuation (<20%/1000 hours), and longer overall service life. The main characteristics of quartz ultraviolet germicidal lamps are high radiation intensity and slow attenuation.
The series of high-transmittance ultraviolet germicidal lamps developed by LIGHTEARTH are made of high-purity quartz glass, with a high ultraviolet transmittance of more than 90%, which boast high-intensity ultraviolet radiation output, low light attenuation and long service life. As the use time of the ultraviolet lamp for disinfection is extended, the radiation intensity will gradually decline. According to various measurements, the attenuation rate of the quartz lamp is less than 20% after 1000 hours of use, while the attenuation rate of the high boron lamp is greater than 30% after 200 hours of use. What's more, the radiation intensity of the high boron lamp itself is less than 70uw/cm2. Therefore, when the customer selects the ultraviolet germicidal lamp, the quartz ultraviolet germicidal lamp should be preferred if it meets the technical standards of ultraviolet sterilization.