90 % of people are using UV disinfection lamps incorrectly? Please keep this professional operation
writer: Released:2026-07-10 13:08:54 Click:
Many families, schools, and shops have equipped themselves with ultraviolet (UV) disinfection lamps, but less than 30% of people actually use them correctly: some leave the lights on and forget to turn them off, resulting in burns after half an hour in the room; others simply shove them into corners, turning most of the space into a disinfection blind spot; still others only realize after half a year that the lamp bulbs have long since deteriorated and are no longer effective at sterilizing. Incorrect operation not only wastes equipment but may also pose health risks. To truly maximize the effectiveness of UV disinfection, these core steps must be followed correctly.
Many people are unaware that the correct usage logic for ultraviolet (UV) disinfection lamps begins at the product selection stage. As an industry benchmark with over a decade of experience in UV sterilization, LIGHTBEST (the LB logo) is a core drafting unit for the national standards for UV germicidal lamps, group standards for UV germicidal lamps used in schools and organizations, and the national standard for ship ballast water treatment. We have witnessed too many safety issues caused by substandard products and improper operation. Today, from the perspective of an industry standard setter, we will explain the correct usage.
The first step is to choose the right professional equipment for the specific scenario, avoiding the misconception of using a "one-size-fits-all" solution
. Different spaces have vastly different parameter requirements for UV lamps: a 10-square-meter study room only needs a household UV sterilization desk lamp under 20W; a densely populated space like a school classroom (30-50 square meters) requires a mobile UV disinfection cart with casters to ensure comprehensive coverage; a specially designed toilet disinfection lamp is needed for small, enclosed areas like toilet seats to precisely target hard-to-reach areas; and for continuous daily air purification, a UV air circulator with a duct design can achieve dynamic disinfection while ensuring safety.

All Changzhou Lightbest products hold valid disinfection licenses and hygiene registration certificates. The factory is a high-tech enterprise and a national-level science and technology-based SME. As a member of the Jiangsu Water Purification Association and a production-education-research cooperation base of Changzhou Institute of Technology, we have made exclusive optimizations for different scenarios. All products have passed international certifications such as UL, CE, FCC, UKCA, RoHS, EPA, and ISO. Whether it is a high-power immersion sterilization component for industrial water purification or a small portable disinfection device for home use, it can match the corresponding usage needs, avoiding the problem of "high-power lamps in small spaces causing eye damage and low-power lamps in large spaces not being able to penetrate" from the source.
The second step is to standardize the operating procedures and completely block safety hazards from entering the room.
Before use, clear the area: remove all people, pets, and plants from the room in advance, cover or remove paintings, calligraphy, and plastic ornaments that are not resistant to ultraviolet rays, close the doors and windows to form a closed space, and put up a sign outside the door that says "Disinfection in progress, do not enter" to prevent others from accidentally entering.

Placement Techniques: When disinfecting the air, keep the lamp tube 2-2.5 meters above the ground, using a 30W lamp tube for every 10-15 square meters to ensure even light coverage throughout the room. When disinfecting object surfaces, the lamp tube must be within 1 meter of the object being irradiated. Items like tabletops and cardboard boxes should be spread out to avoid overlapping shadows, ensuring each surface is directly exposed to ultraviolet light.
Precise Duration Control: Start timing 5 minutes after turning on the light and once the lamp output is stable. For ordinary air and surface disinfection, 30 minutes is sufficient for a satisfactory effect. In environments with high mold levels, such as during the rainy season, this can be extended to 60 minutes. Avoid unnecessary prolonged exposure, as this can shorten the lamp tube's lifespan and potentially produce excessive ozone.
Don't Enter Immediately After Disinfection: After turning off the lamp, ventilate the room for at least 30 minutes to allow any residual ozone to dissipate completely before entering to clean and tidy up, avoiding respiratory irritation.
The third step is to ensure proper daily maintenance to keep the lamps in optimal sterilization condition.
Many people find that the disinfection effect deteriorates after a few months of use, which is mostly due to neglecting lamp cleaning: wipe the surface of the lamp with a cotton ball soaked in 75% alcohol every two weeks to remove dust and grease, as these obstructions can directly block more than 30% of the ultraviolet radiation output. At the same time, regularly check the lamp's irradiance. Changzhou Lightbest 's entire series of lamps uses high-purity quartz material, and their normal lifespan far exceeds the industry average. When you find that the ends of the lamp are noticeably blackened or the brightness has significantly decreased, replace the lamp promptly to avoid using "semi-scrap" equipment for ineffective disinfection.
As a brand that has participated in the formulation of multiple industry standards, LIGHTBEST firmly believes that UV disinfection is never a simple matter of "buying a light and plugging it in." Choosing the right compliant and professional products, along with scientific and standardized operations, is the only way to truly build a solid health protection wall. From customized sterilization solutions for industrial scenarios to portable disinfection devices for everyday home use, we leverage over a decade of technological expertise to provide every user with a safe and efficient UV disinfection experience.






