UV LIGHT
We are your reliable partner for UV LED technology
UV light has many applications in areas such as medicine, industry, science, disinfection and more.
LED technology has advanced and improved many of these applications by providing more efficient, compact and long-lasting light sources without the harmful and environmentally damaging mercury. Before LED technology, UV light was mainly generated by conventional light sources such as mercury vapour lamps and low-pressure mercury lamps.
UV light has shorter wavelengths than visible light and is therefore invisible to the human eye. The UV spectrum is divided into different ranges depending on wavelength and energy: UV-A has the longest wavelength in the UV spectrum (typically between 315 and 400 nanometres). It can cause fluorescent substances to glow. UV-A is used in some medical applications and in industry. UV-B has a shorter wavelength (typically between 280 and 315 nanometres) and is more energetic than UV-A. It is responsible for tanning the skin and producing vitamin D, but excessive exposure to UV-B can cause skin damage.
UV-C has the shortest wavelength (typically between 100 and 280 nanometres) and is the most energetic. UV-C is known for its ability to kill or inactivate micro-organisms such as bacteria, viruses and fungi, making it ideal for disinfection applications. However, it must not come into contact with human skin or eyes.
UV-A – Versatile Applications in Industry, Analysis, and Plant Cultivation
UV-A radiation in the wavelength range of approximately 315 to 400 nm is used in many technical and industrial applications as well as in scientific analyses. Due to its comparatively lower energy compared to UV-B and UV-C, it is particularly suitable for applications in which materials should be specifically stimulated but not damaged. An important field of application is fluorescence excitation: certain substances begin to glow under UV-A light, enabling inspection methods used in quality assurance, leak detection, or material analysis.
UV-A also plays a significant role in industrial processes. The curing of adhesives, coatings, and printing inks using UV-A radiation can take place within a very short time. This enables fast production processes, precise processing, and energy-efficient manufacturing. Modern UV-A LEDs offer long lifetimes, stable wavelengths, and flexible integration options into machines and industrial systems.
In addition to industrial uses, UV-A is also applied in plant cultivation. The radiation can promote the formation of pigments and secondary plant compounds, thereby influencing the color, aroma, and certain constituents of plants. By specifically supplementing UV-A light within the horticultural lighting spectrum, plant growth processes and quality characteristics can be controlled.
APPLICATION
330 nm
High precision for curing, analysis, and inspection
Radiation at 330 nm in the UV-A range is a key technology for photopolymerization, fluorescence excitation, and optical analytics. While its germicidal effect is low, this wavelength excels due to its high efficiency in material-related and analytical processes. From UV-A curing and additive manufacturing to non-destructive testing and sensing, 330 nm enables precise, energy-efficient, and versatile use of UV light in modern industrial applications.
365 -405 nm
Versatile radiation for material curing, research, and inspection
UV-A radiation from 365 nm is a versatile tool for industrial, medical, and scientific applications. Unlike UV-C, it does not primarily target disinfection but focuses on controlled photochemical reactions, fluorescence excitation, and material curing. Its efficiency, safety, and versatility make UV light from 365 nm a preferred for manufacturing, research, inspection, and specialized medical applications.
UV-B - advantages for humans, animals and plant breeding
UV-B light can stimulate the skin to produce vitamin D naturally. Vitamin D is important for bone health, the immune system and other physiological processes in the body. It can also stimulate the production of serotonin, a neurotransmitter that can have a positive effect on mood. It is also used to treat skin diseases and to tan the skin.
Plants also react to UV-B light. In plant cultivation, it can be used to enrich vitamin D. UV-B rays ensure the formation of secondary plant substances. These fulfil a variety of functions, including protection against stress, defence against pests and diseases, attraction of pollinators, development of colour and much more. They also contribute to the development of flavour in fruits and vegetables. UV-B also influences the medicinal properties of plants - for example THC.
Excessive or unprotected UV-B exposure has negative effects on the skin and eyes and can lead to premature skin ageing, skin cancer and other health problems. The correct dosage and adequate protection are therefore crucial.
APPLICATION
308 nm
Dermatology and Material Activation
Radiation at 308 nm in the UV-B range is primarily used for photobiological, medical, and material-related applications. In dermatology, this wavelength has become well established through excimer-based therapy systems, which enable targeted treatment of skin conditions.
Beyond dermatology, 308 nm offers versatile possibilities in photobiology, material activation, fluorescence analysis, and industrial photochemistry. Modern UV technologies allow for precise dosing and integration into compact systems, ranging from medical devices to specialized industrial and research applications
295 nm
Targeted UV-B for Surface Treatment and Industrial Processes
UV radiation at 295 nm falls within the UV-B range and combines high photochemical activity with moderate germicidal effect. It is ideal for controlled disinfection, material modification, and photochemical processes where UV-C would be too strong and UV-A too weak. Its efficiency, versatility, and targeted action make 295 nm the preferred wavelength for surface treatment, laboratory applications, and specialized industrial processes.
UV-C – safe and reliable disinfection
Disinfection and sterilisation are of the utmost importance. In addition to traditional sterilisation methods using chemical liquids or sprays and the use of high temperatures, UV-C radiation plays a particularly important role. In the wavelength range between 280 and 100 nm, pathogens such as viruses, bacteria and other microorganisms are killed within a very short time. With the rapid development of LED technology, it has been possible to develop ever more powerful LEDs that can be used effectively for sterilisation and allow a high degree of design flexibility.
We have been producing customised LED assemblies for UV-A applications since we began distributing Nichia UV LEDs. With our PowerBar V3 LED bars, the first standard products with UV LEDs were added to our portfolio. As an official distributor of the American UV LED specialist Bolb, we offer further LEDs and modules in the UV-C and UV-B range.
Since 2018, we have been working intensively on the possible applications for UVC LED technology, in particular targeted disinfection with UV radiation, and since 2020 the first standard modules with UVC LEDs have been produced in series and we have developed two ready-to-use lights.
Webinar on the topic of UV LEDs
Watch video and pdf now
What are the advantages of modern UV-LED technology?
And how can you implement applications using compact, long-lasting, and highly efficient solutions?
Our experts provided answers to these questions, sharing practical insights into our extensive UV-LED portfolio during the webinar. The range includes everything from individual LEDs and modules to complete UV lamps and the corresponding accessories.
Case Study
UV-C LED systems provide an effective way to disinfect high-traffic areas, such as medical practices, in addition to conventional sterilization methods. A simulation demonstrates how four linear high-power modules can cover surfaces in a typical treatment room, highlighting the impact of room geometry, furniture placement, and exposure times.
Discover how targeted UV-C irradiation between appointments or overnight can enhance hygienic safety.
265 nm
Maximum Germicidal Effect Through DNA Absorption
UV-C radiation at 265 nm offers one of the most effective methods for physical disinfection. Due to its proximity to the DNA absorption maximum, it achieves particularly high germicidal efficiency and is ideally suited for applications with stringent hygiene and purity requirements—from water treatment and industrial production processes to cleanrooms in high-tech manufacturing.
280 nm
Powerful and Technically Robust Disinfection
UV-C radiation at 280 nm provides a powerful and technically robust solution for modern disinfection systems. Although the DNA absorption maximum is closer to 265 nm, 280 nm systems stand out with higher optical output, long service life, and excellent integration possibilities.
This wavelength is particularly suitable for industrial applications where reliability, continuous operation, and compact system integration are critical—from water treatment and food production to medical devices and OEM disinfection modules.
UV LED luminaire VIOLET
Professional UV-C special light with different wavelengths and sizes
The VIOLET series offers powerful UV-C LED technology for professional applications - with wavelengths from 265 nm to 330 nm and in four sizes.
It features a robust, anodised aluminium profile with excellent heat dissipation, special LEDiL optics made of UV-resistant material and control LEDs for safe operation at 30 V constant voltage. It is supplied ready for connection with a 10 m supply cable.
Violet UVC disinfection light with special optics:
This module version also includes a circuit board with 12 UVC LEDs and three control diodes as well as a cover with the Violet rod lens from LEDiL. An external control unit can be easily connected. The constant current module (450 mA / 1050 mA) is primarily aimed at the processing industry, such as luminaire manufacturers or medical technology companies.
We also offer this module light in two versions. The mid-power version is equipped with UVC LEDs from Seoul Viosys and offers a radiation output of up to 192 mW. The high-power version with the new NCSU334B UVC LEDs from world market leader Nichia offers very high efficiency of up to 882 mW.
Complete solution with special optics and control unit:
Our Violet disinfection light is a complete solution and is operated with constant voltage (48 V). In addition to a circuit board fitted with 12 UVC LEDs and three signal LEDs (red, green, blue), the linear modular light also consists of a cover containing the special UV-resistant Violet optics from LEDiL and a robust aluminium housing that is very easy to install with screws. The case also houses the PowerController V2, a compact control unit that offers the user options to enable safe operation of the module.
Bolb Inc. is a US-based manufacturer of high-performance UVB/C solid-state lamps and is a leading developer of the industry's most efficient UVC LEDs. As an official distribution partner in Europe, we offer you Bolb's entire product portfolio of highly efficient UV-C LEDs and UV-C modules for disinfection applications. In addition, we process the UV-C LEDs into customised systems according to your requirements.
More about Bolb Inc
ERP Power was founded in 2004. Since then, the company has been developing and producing highly efficient control gear for LED lighting in a very compact design. Thanks to the smaller design, the development of housings for lights is no longer dominated by the size of the operating devices and thus opens up new possibilities. ERP Power is based in Moorpark California in the USA and has ISO9001 certified production.
Official distribution by LUMITRONIX® includes the following countries: Germany, Austria, Switzerland, France, Netherlands and Belgium.
The best manufacturers of UV LEDs - we are an official distributor
Case study – Simulation for surface disinfection
Irradiation with UV-C LED systems is an effective approach to keeping heavily frequented rooms germ-free in addition to conventional sterilisation methods.
Simulation of the sterilisation of surfaces in a doctor's surgery:
- Medical practice: length = 4 m, width = 5 m, height = 2.5 m
- UVC irradiation with four linear high-performance "Violet" modules emitting at 280 nm
- Furniture: Instrument table (1), treatment couch (2), desk (3), cabinet (4) - different heights and surface sizes
For safety reasons, the UVC LED radiation sources can only be used when the room is empty (between treatment appointments) or overnight.
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What is the optimum positioning of the UV-C LED modules?
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How much optical power does the surface achieve?
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How long does it take to inactivate viruses and germs?
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How can it be ensured that there is no harmful contact with UVC radiation and people?
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It is crucial to place the UV-C LED lights directly above the important surfaces to avoid shading, and in this simulation we have deliberately chosen a non-optimal arrangement to show the different range of results. - Cf. in the picture instrument table (1) placed directly under the UV-C lamp, vs. filing cabinet (4) on the wall, with little direct irradiation.the LUMITRONIX® team will advise you on the optimum placement of the UV-C modules in your specific application!
The simulation provides the result of how much optical power reaches the individual surfaces. The duration for effective sterilisation can be derived from this.
The "kill factor" of the UV-C radiation can vary greatly depending on the target organism. We have calculated the duration for disinfection (99.9%) on the defined surfaces (1 - 4) for two exemplary pathogens: for the bacterium E.Coli and the virus SARS CoV2.
This leads us to the conclusion that effective disinfection can be realised with the power and efficiency of UV-C LEDs, even at greater distances. A minimum time between treatment sessions or overnight allows effective sterilisation of surfaces.
At shorter intervals, individual microorganisms can be inactivated in a matter of seconds.
On request, you will receive a detailed list of the data on the optical performance on the defined surfaces (1 - 4) as well as our calculation for the pathogens mentioned. The simulation of UVC LED radiation propagation with the Violet lens in the defined room concept was carried out by LEDIL Tech Support.
There are important influencing factors that are not taken into account in an optical simulation, such as: room temperature, surface structure, humidity, etc. A metrological comparison of the simulation results with real measurement data is therefore necessary to verify the simulation.
Hazard-free use thanks to intelligent control
Our professional UVC solutions can be safely controlled using the PowerController V2. Individual customer wishes and requirements can be easily realised using software. This means that nothing stands in the way of hazard-free use of our extremely efficient UVC solutions.
You can see an example of the practical application of our modules in the room concept below. You will find a customised control solution in use in our references under customer projects.
LEDs offer many advantages over UV lamps and great design flexibility thanks to their compact design:
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Less electrical power required - perfect for battery-powered applications
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Robust against physical stress (e.g. vibration) - perfect for mobile use
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Environmentally friendly - no mercury; no ozone (>240nm)
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Unlimited switching cycles
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No warm-up phase, full optical power right from the start
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Pulsed operation possible for higher optical power; 100% dimmable
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Targeted use of different wavelengths (mixed assembly on one circuit board)
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Option of using lenses to focus the UV-C light in a targeted manner
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Safety system based on our Power Controller V2
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Less damage to exposed surfaces from UV-C light compared to other UV-C technologies with higher output
Advantages of LED technology for UV-C systems
CONTACT
Enquire about your project!
Do not hesitate to contact our LED module expert.
Paul Sparenborg – Sales Manager –
Tel. +49 7471 96014 – 77
E-Mail ps@leds.de
