UV-C Lamps

UV-C lamps are replaceable components used in beverage manufacturing for ultraviolet disinfection. They emit ultraviolet radiation at a peak germicidal wavelength of 254 nm, which is effective at inactivating microorganisms by damaging their DNA. These lamps are typically installed in UV disinfection units, water treatment systems, or air handling units within the production facility. The lamps are available in standard lengths from 300 to 1500 mm, with diameters of 15–26 mm (T5, T8, T12 types), and power consumption ranging from 15 to 60 W. UV output at 254 nm is typically 4–20 W, depending on the lamp length and design. The rated lifetime is 8000–12000 hours, defined as the point when UV output drops to 80% of initial value. Operating temperature range is 5–40°C, with optimal performance at 25°C, and non-condensing humidity of 30–70% RH. Input voltage is universal 100–277 V AC. Ingress protection ratings range from IP20 to IP65, depending on fixture design, and base types are G5 to G13, compatible with standard sockets. Mercury content is 3–15 mg, with low-mercury options available, and the lamps are designed to meet RoHS requirements. These lamps are not standalone disinfection systems; they require appropriate fixtures, ballasts, and safety controls. When selecting UV-C lamps, verify model-specific parameters such as exact dimensions, UV output, and electrical ratings with the manufacturer. Also confirm that the lamp is compatible with the existing UV system and that the system provides adequate exposure time and intensity for the target microorganisms. Regular maintenance includes cleaning lamp surfaces and replacing lamps at end of life to ensure consistent disinfection. Always follow safety guidelines to prevent UV exposure to skin and eyes.

UV-C lamps generate ultraviolet radiation at 254 nm, which is absorbed by the DNA of microorganisms, causing thymine dimers that prevent replication and lead to inactivation. The lamps contain a low-pressure mercury vapor that produces UV-C when electrically excited. In beverage manufacturing, these lamps are used in water treatment, surface disinfection, or air purification systems. The effectiveness depends on UV dose (intensity × exposure time), which must be sufficient for the target pathogens. The lamps are typically housed in quartz sleeves to protect them from water and allow UV transmission. As lamps age, UV output decreases, so they must be replaced when output falls below 80% of initial value to maintain disinfection efficacy.