Many users have a common question when using UV germicidal lamps: why do some UV lamps emit a faint ozone odor after long-term use, while others produce no peculiar smell at all? The answer lies in the wavelength characteristics of ultraviolet rays.

According to optical principles, ultraviolet rays with a wavelength of 185nm feature extremely high energy, which can directly break the covalent bonds of oxygen molecules in the air. The separated oxygen atoms quickly recombine with other oxygen molecules, ultimately forming ozone. In contrast, the commonly used 254nm germicidal UV rays do not carry sufficient energy to trigger this photolysis reaction on a large scale, so they produce no obvious ozone under normal operating conditions. The material of the lamp tube is the core factor controlling ozone generation. Quartz glass tubes doped with titanium can directly block the output of 185nm ultraviolet rays, achieving a pure germicidal effect with zero ozone production.

Users in water treatment and aquaculture industries have frequently encountered operational pitfalls. Low-cost UV lamps with impure spectra allow leakage of 185nm ultraviolet rays, which generate excessive ozone in the air section of equipment cavities. This issue often leads to massive unexplained deaths of fish fry, with no abnormal indicators found in conventional water quality tests until excessive ozone levels are detected. Choosing inappropriate UV lamps not only fails to deliver effective disinfection but also causes unexpected economic losses.

With over a decade of in-depth expertise in the UV disinfection industry, LIGHTBEST has taken accurate and controllable wavelength output as the core standard for product R&D. As a participating drafting unit of the national standard UV Germicidal Lamps (GB/T19258.2), the company holds more than 20 relevant patents. All our lamp tubes adopt strictly controlled spectral output:

For scenarios requiring ozone-assisted waste gas treatment and advanced oxidation processes, we provide high-ozone dual-band (185nm+254nm) UV lamps with stable irradiance and low light attenuation, fully meeting the process requirements of photolytic waste gas treatment. For ozone-sensitive scenarios including drinking water treatment, aquaculture, and food processing, our ozone-free UV lamps adopt high-purity titanium-doped quartz materials to completely block 185nm spectral leakage. These lamps deliver stable output of the core 254nm germicidal wavelength, with a service life of up to 16,000 hours, eliminating the risk of accidental ozone excess throughout operation.

LIGHTBEST’s full range of products, including household UV mite removal lamps, submersible fish tank sterilization components, high-power stainless steel flow-through sterilizers for municipal water supply, and supporting intelligent electronic ballasts, have obtained CE, UL, RoHS and other international certifications. We provide high-efficiency oxidation solutions with controllable ozone output and customizable ozone-free pure germicidal products, realizing personalized and scenario-matched UV solutions.

If you are troubled by ozone-related issues of UV lamps, choose professional solutions from LIGHTBEST. We safeguard industrial and daily safety with precise ultraviolet technology, ensuring every beam of UV light is applied safely, efficiently and reliably.