UVC Lamps

UVC lamps, also referred to as germicidal lamps or germicidal UV-C lights, are short-wave ultraviolet light sources that emit radiation in the UV-C band, typically at a peak wavelength of 254nm, which has been demonstrated to effectively deactivate bacteria, viruses, protozoa, and other pathogens by disrupting their DNA and RNA. These devices are used for UV-C disinfection of air, water, and surfaces without the use of chemicals, making them a reliable and residue-free solution for infection control across healthcare, water treatment, food production, and HVAC environments.

UVC lamp bulbs are available in low-pressure and high-pressure discharge formats as well as UV-C LED configurations, each offering different output intensities, spectral characteristics, and service lives suited to specific germicidal UV-C light applications. RS Australia stocks a broad range of UVC lamps with options covering a range of wattages, lamp bases, lifespans up to 50,000 hours, and RoHS-compliant models.

Key Uses of UVC Lamps & Germicidal Lights

UVC lamps and germicidal lights serve several distinct disinfection functions across professional, industrial, and commercial environments in Australia.

• UV-C Disinfection of Air: Germicidal UV-C light installed in HVAC systems, air handling units, and air purifiers continuously irradiates recirculated air to neutralise airborne pathogens before they are redistributed through a building or enclosed space.
• Water Sterilisation: UV disinfection lamps and UV-C sterilisation lamps are used in municipal water treatment, commercial aquaculture, aquarium filtration, and point-of-use drinking water systems to inactivate bacteria and viruses without introducing chemical residues into the water supply.
• Surface & Equipment Sterilisation: Ultraviolet germicidal lamps are used in healthcare facilities, research laboratories, and food processing environments to deactivate surface-bound bacteria and viruses on workbenches, equipment, and high-contact surfaces.
• Workplace & Facility Hygiene: Germicidal UV-C light provides a chemical-free sterilisation method for workplaces, tools, and high-touch surfaces in settings where chemical disinfectant residues are undesirable or where rapid, repeatable decontamination cycles are required.

Shop Different Types of UVC & Germicidal Lamps at RS

UVC lamps are available in three primary technology types, each with distinct operating characteristics and germicidal UV-C light output profiles suited to different applications.

Low Pressure Lamps

Low-pressure germicidal lamps are the most widely used format for UV-C disinfection, producing a monochromatic output concentrated at 254nm, which falls within the peak germicidal effectiveness range of the UV-C spectrum. Constructed from fused quartz rather than standard glass, the envelope transmits UV-C radiation directly rather than using phosphor conversion, resulting in a highly efficient germicidal light output with minimal energy lost to other wavelengths.

Low-pressure UVC lamps are the standard choice for air disinfection, water sterilisation systems , and surface decontamination enclosures in Australia, where a consistent, single-wavelength germicidal output is required over extended continuous operation.

High Pressure UV Germicidal Lamps

High-pressure UV germicidal lamps produce a broadband radiation output spanning multiple wavelengths across the UV spectrum, including UV-C, UV-B, and UV-A bands, rather than the single-line emission of low-pressure types. This broadband output, combined with significantly higher power densities, makes high-pressure germicidal lamps well suited to high-throughput industrial water treatment systems and applications where short exposure times and high irradiance levels are required to achieve the target log reduction of pathogens.

The higher operating intensity also makes them effective where water flow rates or treatment volumes would require impractically long lamp arrays using low-pressure technology.

UV-C LED Germicidal Lamps

UV-C LED germicidal lamps use semiconductor technology to produce ultraviolet germicidal light without a gas discharge envelope, offering advantages including instant on-off switching, a compact and lightweight form factor, and long rated lifespans that can reach 30,000 to 50,000 hours or more.

The emission wavelength of a UV-C LED germicidal lamp is adjustable through semiconductor material chemistry, providing greater selectivity than fixed-wavelength discharge lamps and allowing the output to be tuned to specific pathogen targets.

UV-C LED lamps are increasingly specified for portable UV-C lamp for disinfection devices, compact point-of-use water treatment units, and applications across Australia where the physical size or fragility of a glass discharge lamp would be a limiting factor.

How to Choose the Right UVC Lamp for Your Needs

Selecting the right UVC lamp requires matching the lamp technology, output specification, and physical format to the intended UV-C disinfection environment and performance requirements.

• Application Type: Determine whether the primary application is air disinfection, water sterilisation, or surface decontamination, as each environment imposes different requirements on lamp intensity, exposure geometry, and lamp construction.
• Lamp Technology: Low-pressure lamps suit applications requiring efficient single-wavelength germicidal output over extended run times, high-pressure lamps are preferred where high irradiance and broadband output are needed, and UV-C LED lamps are the right choice for compact, portable, or long-lifespan UV-C lamp for disinfection applications.
• Peak Wavelength: Confirm that the lamp's peak wavelength aligns with the target germicidal effectiveness range, with 254nm being the established standard for most bacteria and virus inactivation; UV-C LED variants may offer adjustable wavelengths for specific pathogen targeting.
• Wattage & Lifespan: Match the lamp wattage to the volume of the space, flow rate of the water system, or surface area being treated, and check the rated lifespan of the UVC lamp bulbs to estimate replacement frequency and factor this into total cost of ownership.
• Lamp Base & Compatibility: Verify that the lamp base or socket type, including common designations such as G5, G13, G23, GX23, 2G7, and 2G11, is compatible with the existing fixture, ballast, or driver before ordering replacement UVC lamp bulbs.

Common Industry Applications of UVC Lamps & Germicidal Lights

Germicidal UV-C light is deployed across a broad range of industries in Australia wherever pathogen control, contamination reduction, and chemical-free disinfection are operational requirements.

• Healthcare & Hospitals: Ultraviolet germicidal lamps are used in operating theatres, patient wards, isolation rooms, and medical equipment sterilisation units to reduce hospital-acquired infections (HAIs) by deactivating surface and airborne pathogens that resist standard cleaning protocols.
• Water Treatment: UV disinfection lamps and UV-C sterilisation lamps are integrated into municipal drinking water and wastewater treatment infrastructure across Australia, providing a validated, chemical-free pathogen inactivation stage that meets regulatory requirements without the taste, odour, or by-product concerns associated with chemical disinfection.
• Food & Beverage Processing: Germicidal UV-C light is used in food preparation areas, packaging lines, cold storage facilities, and beverage production environments to reduce microbial contamination on surfaces and in air without introducing chemical residues that could affect product safety or quality.
• HVAC & Air Purification: UVC germicidal lamps installed within air handling units and duct systems continuously irradiate recirculated air, reducing the concentration of airborne pathogens and mould spores distributed through commercial and institutional buildings across Australia.
• Laboratories & Research: Germicidal lamps are standard equipment in biosafety cabinets, laminar flow workstations, and general laboratory workspaces, providing rapid UV-C surface decontamination between experiments or shifts to maintain a controlled microbiological environment.
• Aquaculture & Aquariums: UV-C germicidal light is used in recirculating aquaculture systems, fish farms, and public and private aquariums across Australia to control algae growth, disinfect incoming water, and manage pathogen loads without chemicals that would harm aquatic life.

Your Trusted UVC Lamp Manufacturer & Supplier in Australia

RS Australia is a trusted UVC lamp supplier stocking a comprehensive range of germicidal lamps, UV-C sterilisation lamps, and ultraviolet germicidal lamp products from leading manufacturers including Osram, Stanley Electric, and Bailey Electric & Electronics bv.

Our catalogue includes germicidal UV-C light technologies across a broad range of wattages, lamp bases, and rated lifespans. The full range can be filtered by wattage, peak wavelength, lamp base type, lifespan, and standards compliance, including RoHS-approved UVC lamp bulbs, to identify the right germicidal UV-C light for the application quickly and accurately.

RS Australia also carries complementary products including UV light bulbs, CFL light bulbs, and lighting controllers so you can source solutions from a single supplier. Browse the full range of UVC lamps and germicidal lights and order online at RS Australia today. For more information on delivery options and fees, visit our delivery information page.