UV-C Germicidal Lamp

Product Specifications

Technical details and manufacturing context for UV-C Germicidal Lamp

Definition

The UV-C Germicidal Lamp is a component used in controlled environments such as aseptic chambers with laminar flow. It emits ultraviolet radiation at a peak wavelength of 253.7 nm, which is absorbed by the nucleic acids of bacteria, viruses, and other pathogens, causing photochemical damage that prevents replication and leads to inactivation. This lamp complements laminar airflow by targeting airborne and surface contaminants within the chamber, helping to maintain workspace sterility. The lamp consists of a low-pressure mercury vapor discharge tube enclosed in a quartz glass tube, with tungsten electrodes and aluminum end caps. It operates on an input voltage of 100–277 V AC and provides UV-C output power ranging from 15 to 60 W. The power factor is 0.95–0.99, complying with IEC 61000-3-2. The lamp is designed for operating temperatures from -20°C to 50°C and relative humidity up to 85% non-condensing. It has an ingress protection rating of IP54–IP65 per IEC 60529. Lamp life is 8000–12000 hours, defined as the time to 70% UV output, per IEC 60081. Warm-up time to reach 90% UV output is 1–3 minutes. Dimensions range from 300 to 1200 mm in length, and weight varies from 0.5 to 2.5 kg depending on housing and ballast. These values are reference ranges; actual model-specific specifications must be confirmed with the legal manufacturer or supplier. The lamp is intended for use in equipment where UV-C disinfection is required, and proper safety measures must be implemented to prevent human exposure to UV-C radiation.

Working Principle

The lamp contains a low-pressure mercury vapor discharge tube. When electrically excited, it emits ultraviolet light primarily at 253.7 nm (UV-C). This high-energy, short-wavelength radiation is absorbed by the nucleic acids (DNA/RNA) of microorganisms, causing thymine dimers or other photochemical damage that prevents replication and leads to cell death or inactivation.

Common Materials

Quartz Glass Tube, Mercury Amalgam, Tungsten Electrodes, Aluminum End Caps

Technical Parameters

Parameter	Typical range	Notes & selection driver
Wavelength	253.7 nm	Peak germicidal wavelength
UV-C Output Power	15–60 W	Determines disinfection capacity
Input Voltage	100–277 V AC	Universal input for global use
Power Factor	0.95–0.99	High PF for energy efficiencyIEC 61000-3-2
Operating Temperature	-20–50 °C	Outside range reduces UV output
Relative Humidity	0–85 % RH	Non-condensing
Ingress Protection	IP54–IP65	Dust and water resistanceIEC 60529
Lamp Life	8000–12000 h	End of life at 70% UV outputIEC 60081
Warm-up Time	1–3 min	Time to reach 90% UV output
Dimensions	300–1200 mm	Length of lamp tube
Weight	0.5–2.5 kg	Depends on housing and ballast

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Quartz Glass Tube Part
Encapsulates the mercury vapor and electrodes while allowing high transmission of UV-C wavelengths (unlike standard glass).

Material: Fused Quartz
Electrodes Part
Conduct electrical current into the gas discharge, initiating and sustaining the plasma that generates UV light.

Material: Tungsten
Mercury Amalgam Part
Source of mercury vapor within the tube; the amalgam formulation helps maintain stable UV output over a range of ambient temperatures.

Material: Mercury Alloy
Base/End Cap Part
Provides mechanical support, electrical connection points, and seals the ends of the glass tube.

Material: Aluminum Alloy

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Aseptic Chamber with Laminar Flow

View system integration details

Manufacturers of UV-C Germicidal Lamp

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review · Page last updated 6 September 2026

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Frequently Asked Questions

What is the peak wavelength of the UV-C germicidal lamp?

The peak germicidal wavelength is 253.7 nm, as listed in the product parameters. This wavelength is effective for inactivating microorganisms by damaging their nucleic acids.

What are the typical UV-C output power ranges?

The UV-C output power ranges from 15 to 60 W, depending on the specific model. This determines the disinfection capacity of the lamp.

What is the expected lamp life?

The lamp life is 8000 to 12000 hours, defined as the time until UV output drops to 70% of initial value, per IEC 60081. Actual life may vary with operating conditions.

What safety precautions should be taken when using this lamp?

UV-C radiation is harmful to skin and eyes. The lamp must be used in enclosed fixtures or with interlocks to prevent exposure. Always follow the manufacturer's safety instructions and applicable regulations.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	Atmospheric (0.8 to 1.2 bar)
other spec:	Relative humidity: 20% to 80% non-condensing, UV-C intensity: 254 nm wavelength, Exposure time: 15-60 minutes depending on application
temperature:	0°C to 40°C (operating), -20°C to 60°C (storage)

Product Specifications

Applied To / Applications

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