Blue uv light wavelength. Blue light encompasses wavelengths ranging from 380 nm (highest energy) to 500 nm (lowest energy). S. Can humans see infrared light? Aug 10, 2016 · Ultraviolet (UV) light has shorter wavelengths than visible light. BLUE LIGHT AND LEAF COLOR Radiation with shorter wavelengths (blue/UV) stimulates the production of compounds that can influence leaf coloration. See full list on sciencenotes. Retina Damage Blue light, specifically in the range of 400-450 nanometers, is a powerful and concentrated wavelength. Each color brings into view an otherwise invisible universe. Jan 30, 2024 · Explore the critical role of light spectrum in plant growth, from UV to far-red light. The wavelength of the light depends on the energy band gap of the semiconductors used. Within the visible light spectrum, each wavelength is represented by a color [1, 2, 3]. The visible spectrum is the band of the electromagnetic spectrum that is visible to the human eye. UV rays and blue light, undoubtedly, have a bad impact on eye health but it happens gradually with cumulative exposure. UV systems cure using ultraviolet light which is a wide range of wavelengths from 100 to 400 nanometers. This photodynamic therapy is FDA-approved for the treatment of moderate acne vulgaris or acne vulgaris that has not responded to other acne therapies. In this article we compare UVC and blue light technologies and situations in which they excel. Ultraviolet (UV) radiation is well-known for its antimicrobial properties. The technology filters UV and HEY up to 420 nm while transmitting lon­ger blue wavelengths and the rest of the visible light spectrum. There has been significant discussion in the media about the importance of blue light for our circadian rhythm and mood regulation, and that excessive exposure could be linked to various eye problems. Physical Properties of Blue Light Frequency: Blue light operates within the frequency range of 610 terahertz - 670 terahertz. High-energy visible light (HEV light) is short-wave light in the violet / blue band from 400 to 450 nm in the visible spectrum, which in artificial narrowband form has a number of proven negative biological effects, namely on circadian rhythm and retinal health (blue-light hazard), which can lead to age-related For a light-cured resin-based restoration to function and last as intended, it must receive the required amount of light energy at the proper wavelength (i. 450 nanometer light, for example, is a royal blue color, while 630 nm is a punchy, red color. Learn why certain ranges impact melatonin, the risks of overexposure, and practical tips like using blue light glasses and screen filters to protect your vision and improve sleep quality. . Mar 8, 2018 · FreeMascot OD 6+ 190nm-490nm Wavelength UV light/Violet & Blue Laser Safety Glasses (Style 1B) - Amazon. Nov 12, 2024 · Light therapy has become a popular wellness trend, and with good reason. Learn how each affects your eyes and health, why protection methods differ, and get practical tips for reducing exposure. Blue light can be divided into two bands: blue-violet light (415-455 nm) and blue-turquoise light (465-495 nm). As wavelengths get shorter and frequencies increase, the energy of each photon rises. Today, with advancements in technology, the medical community has harnessed specific wavelengths of light to develop targeted treatments for a wide range of conditions. This electromagnetic radiation is not visible to the human eye, because it has a shorter wavelength and higher frequency than the light our brain perceives as images. Sep 14, 2024 · The wavelength of an LED is a deciding factor of the light color, which means red, green, blue LEDs have different wavelengths. Blue light is a type of light with wavelengths between 380 and 500 nanometers, which is the shortest wavelength in the visible spectrum. The effect of blue light on humans is mostly positive because it helps regulate sleep patterns and boost alertness. [1][2][3] One type of lamp has a violet filter material, either on the bulb or in a separate glass filter in the lamp housing, which blocks most visible light and allows through UV, [2 Sep 6, 2024 · Blue light is a crucial component of the visible light spectrum, with wavelengths ranging from 450 nm - 500 nm (4500 Å - 4950 Å). The approximate wavelength ranges (in nanometers) for visible light is: Blue light is located in a narrow band Oct 11, 2025 · Ultraviolet radiation lies between wavelengths of about 400 nanometres (1 nanometre [nm] is 10 −9 metre) on the visible-light side and about 10 nm on the X-ray side, though some authorities extend the short-wavelength limit to 4 nm. At higher energies they can cause an electron to gain enough Jul 27, 2025 · Without visible light, we would live in permanent darkness, biologically and culturally. It can be harmful because it is the brightest visible light that most people are exposed to for long periods of time. Cool wavelengths of light, including UV (200-380nm), Violet (380-445nm), and Blue (450-495nm), are responsible for developing Blue light, a type of high-energy light, is part of the visible light spectrum. It is shorter than visible light but longer than X-Rays, as shown below. But what is the difference between far-UV and near-UV? Jun 9, 2023 · Blue light filters and protective eyewear If you are constantly using your phone for texting, emailing and web browsing, a convenient way to reduce your blue light exposure is to apply a blue light filter to the screen of your device. The Bluelight system cures using specifically blue light (hence the name!) which is a very focused range of visible light: 444 to 457 nanometers (nm). comWhy Laser Safety? Even at lower power output levels, it is possible to cause irreversible ocular injury from a single accidental exposure to a direct or reflected laser beam, depending on the wavelength, output and exposure duration. Mar 9, 2022 · What is visible light. 5 uv and visible light absorption spectroscopy - methylene blue dye Doc Brown's Chemistry Advanced Level Pre-University Chemistry Revision Study Notes for UK IB KS5 A/AS GCE advanced A level organic chemistry students US K12 grade 11 grade 12 organic chemistry courses Spectroscopic methods of analysis and molecular structure determination SPECTROSCOPY Dec 19, 2024 · What nm range is visible light? Visible light ranges from approximately 380 nanometers (nm) to 750 nanometers (nm). (This range is just a tiny part of the entire EM spectrum, so the light our eyes can see is just a little fraction of all the EM radiation around us. Learn about balancing artificial and natural light, energy-efficient LED technology, and tailored lighting strategies for different plant stages and species. Sep 2, 2021 · Black lights are by far the most efficient way to charge glow in the dark paint and it is mandatory for fluorescent UV Reactive paint. Where is visible light located in the electromagnetic spectrum. The UV portion of the spectrum has different regions, like the different colors of visible light, that correspond to specific wavelengths of UV radiation. Physics of light production and emission In a light-emitting diode, the recombination of electrons and electron holes in a semiconductor produces light (infrared, visible or UV), a process called electroluminescence. Light with a wavelength immediately shorter than any light in the visible spectrum is called Ultraviolet Light. See its categories and effects. What wavelength is blacklight? Blacklight typically emits ultraviolet (UV) light with wavelengths around 320 to 400 nanometers (nm), just outside the visible spectrum. The three different types of UV light bulb available are Blacklight Blue (BLB), Blacklight (BL368), and Germicidal. Feb 28, 2022 · What is blue light? The Sun bathes us daily in light, which is one of many types of electromagnetic radiation, along with radio waves, microwaves and gamma rays. That is why people typically take Dec 5, 2024 · The visible spectrum includes wavelengths that range from approximately 380 nanometers to 780 nanometers. The UV or visible light wavelength emitted by the transilluminator must match the absorbance spectrum of the fluorescent dye used during gel separation. Laser safety can prevent damage to equipment as well Its most common everyday application is in (gas-discharge) fluorescent lamps and LED lamps, where fluorescent coatings convert UV or blue light into longer wavelengths, resulting in white light, which can appear indistinguishable from that of the traditional but energy-inefficient incandescent lamp. Throughout most of the electromagnetic spectrum, spectroscopy can be used to separate waves of different frequencies, so that the intensity of the radiation can be measured as a function of frequency or wavelength. A black light emits mainly UV radiation and a little bit of visible light on the long end of UV which is violet. During the visual cycle, when opsin starts the process of Why is the wavelength so important? Well, in short, to be useful, a UV light needs to induce fluorescence. Unlike traditional flashlights that produce white light, blue light flashlights generate a distinct blue-hued illumination, which falls within the UV spectrum. Red light has a wavelength near 650 nm, while the wavelength of blue light is around 440 nm. This high energy I ndex of pages on ultraviolet and visible spectroscopy 15. Unfortunately, manufacturers use the words “Black Light” and “UV” carelessly Exposure to certain wavelengths of blue light carries potential blinding effects and a link to AMD. Low energy (low frequency) photons simply make atoms vibrate more, which increases their heat. WAVELENGTHS OF VISIBLE LIGHT All electromagnetic radiation is light, but we can only see a small portion of this Oct 16, 2022 · The light that reaches and enters the human eye is divided into visible light, comprising wavelengths from 380 to 780 nm, and non-visible light, which includes light in the ultraviolet range (UV light) and the infrared range (IR light). Ultraviolet: Light with a Bite Ultraviolet light is beyond the violet edge of the visible spectrum. A blacklight, also called a UV-A light, Wood's lamp, or ultraviolet light, is a lamp that emits long-wave (UV-A) ultraviolet light and very little visible light. UV radiation is present in sunlight and constitutes about 10% of the total electromagnetic radiation output from the Sun. This unique characteristic makes them suitable for a wide array of Discover the key differences between blue light from screens and UV light from the sun. We manufacture disinfection products using both LED-UVC and visible blue light. Doc Brown's Advanced Chemistry: PART 15. Aug 19, 2022 · Moreover, our eyes are used to UV light but Blue light is newer due to the increasing sources of artificial lights like CFL and LED. Cheap UV lights usually are usually 405nm or 395nm and are fairly blue, while 365nm is firmly UV-A. Experts have been aware for some time that UV light can potentially damage biological tissue, such as our skin and eyes. Electromagnetic radiation in this range of wavelengths is called visible light (or simply light). Ask for blue filter lenses made with UV+420cut™ technology. Blue light, or high-energy visible (HEV) light, has a longer wavelength than UV light, at around 450 to 490 nanometers. These frequencies UVB ultraviolet light sits in the 280-315 nm and can negatively impact on plant colour. Blue light is perceived as the color blue, though it may also be present in light perceived as another color, particularly white light. Within this Apr 24, 2023 · The whole light spectrum is traveling through our atmosphere — but the sky usually looks blue because blue light waves bounce and scatter off the nitrogen and oxygen particles in our atmosphere Blue light is a type of light with a wavelength range between 400-495 nanometers, which is part of the visible light spectrum. 2 uv-visible spectroscopy theory, spectrometer, examples of absorption & reflectance spectra explained 15. 0000004 meters) As far as Visible light is the small part within the electromagnetic spectrum that human eyes are sensitive to and can detect. Additionally, as the cornea and crystalline lens absorbs almost all natural UV radiation, UV radiation is thought to cause damage to the anterior eye, while short visible light (“blue-light”) can cause damage to retinal structures. Feb 12, 2024 · Blue light has shorter wavelengths and higher energy than other colors. The sun emits blue light alongside UV rays. Visible light waves consist of different wavelengths. Arnold, B. Blue light, emitted Aug 10, 2016 · What is the visible light spectrum? The visible light spectrum is the segment of the electromagnetic spectrum that the human eye can view. But research has shown that HEV blue light of wavelengths 410 nm and 480 nm emitted by LED lamps can induce oxidative damage to cultures of human corneal epithelial cells, whereas irradiation with visible light of longer wavelengths did not. Jun 5, 2025 · What is blue light? Blue light is a segment of the visible light spectrum with a shorter wavelength and higher frequency than most other lights we can see. Jan 12, 2024 · A blue light flashlight, also known as a UV flashlight, is a handheld device equipped with a blue LED that emits ultraviolet (UV) light at a specific wavelength. More simply, this range of wavelengths is called visible light. What Is Black Light? A black light is a specific type of UV-A light that emits longwave ultraviolet light, typically in the 365-400 nm range. While black lights emit some visible light (a faint violet or bluish glow), most of the radiation they produce is beyond human vision. We can’t see the vast majority of these energy waves flowing through space, but we can measure them. It is located at the shorter end of the spectrum, near violet light, and is defined by its characteristic blue color. 1 The origin of colour, the wavelengths of visible light, our perception! (this page for simple introduction) 15. From visible blue light to invisible extreme UV light, ASML’s lithography machines keep innovation in light and lasers moving forward. However, too much exposure to UV radiation is Nov 14, 2024 · Blue light, a part of the visible light spectrum, is naturally present in sunlight and is emitted by electronic devices such as computers, smartphones, tablets, and LED lighting. Penetration depth of ultraviolet, visible light and infrared radiation in biological tissue has not previously been adequately measured. 3 uv-visible absorption spectra - index of examples: uses, applications, more on the chemistry of colour Organic A - Transilluminator Wavelength Channels (back to chart) Gel transilluminators emit ultraviolet light (254 nm, 302 nm and 365 nm) or visible light (465 nm) for visualization of fluorescent nucleic acid or protein samples. This makes a huge difference in Higher frequency (with shorter wavelength) has more energy: Red light has lower frequency, longer wavelength and less energy Blue light has higher frequency, shorter wavelength and more energy Energy Higher frequency has higher energy. Discover how blue light wavelengths (400–500 nm) from screens and sunlight affect your eye health and sleep. This range is known as Photosynthetically Active Radiation (PAR). Make informed choices about blue light glasses, UV sunglasses, and protecting your vision every day. UV-B This is the light that can commonly lead to sunburn. The colour of visible light d Jun 14, 2021 · UV Light and Fluorescent MineralsUltraviolet (or UV) is light with wavelengths shorter than that of visible light, measuring from about 25nm (nanometers) up to 400nm. In the visible spectrum, short-wave blue light with wavelength between 415 nm and 455 nm is closely related to eye light damage. 22 Because other research has shown oxidative stress and inflammation of the ocular surface play a role Dive into the science of light — wavelengths, photon energy, coherence, and how they impact photobiomodulation for health and healing. Mar 8, 2018 · Amazon. An easy way to remember UV Sep 15, 2017 · Ultraviolet light is a type of electromagnetic radiation that makes black-light posters glow, and is responsible for summer tans — and sunburns. Apr 17, 2025 · The Larger Spectrum of Rays Ultraviolet light, or UV, is a part of the electromagnetic spectrum along with gamma rays, x-rays, visible light, infrared, microwaves, and radio waves. This violet purple is where the short end of the visible spectrum ends. Learn more about Ultraviolet LED Wavelength. Risk assessment of typical intense pulsed light and laser intensities, spectral characteristics and the May 31, 2017 · Far-UV disinfection can be an extremely effective way to protect against infections. SOURCES OF BLUE AND UV LIGHT: Blue light is high-energy visible (HEV) light. Research shows that different light wavelengths—specifically red, yellow, and blue—can offer unique health benefits, from improving skin health to enhancing mood and reducing inflammation. Learn the facts and myths about blue light. Aug 22, 2022 · Moreover, our eyes are used to UV light but Blue light is newer due to the increasing sources of artificial lights like CFL and LED. Although we can't see ultraviolet light, when visible light is dim or absent we can see ultraviolet's brilliantly colorful effect on fluorescent minerals. acnes bacteria in skin. Finally, they used a longpass filter that blocked wavelengths under 470 nanometers. ) argon-ion lasers at 458 and 488 nm [5] Lasers emitting wavelengths below 445 nm appear violet, but are nonetheless also called blue lasers. UV light is outside the photosynthetic wavelength range of 400-700nm, which plants use to perform photosynthesis. Answer According to multiple sources (NASA, FDA, and others) here are the wavelengths of the UVA, UVB and UVC regions: UVA 400 nm - 320 nm UVB 320 nm - 290 nm UVC 290 nm - 100 nm Note: nm means nanometer (400 nm = 400 x 10 -9 meters or 0. In some leafy greens crops such as lettuce, blue/UV also increases the production of healthful compounds such as antioxidants and some Dec 20, 2018 · In recent years, people have become increasingly attentive to light pollution influences on their eyes. Oct 11, 2024 · The use of light in medicine dates back to ancient civilizations, when sunlight was employed to treat various ailments. Blue light spectrum The blue light spectrum, characterized by wavelengths between 400 and 500 nanometers, has a broad impact on human health, influencing numerous physiological processes in the human body. Oct 13, 2024 · II. org Jun 4, 2020 · Part of the visible light spectrum, this type of visible light is the closest to UV light on the light spectrum. For example, in the absence of blue/UV radiation, plants that have purplish leaves outdoors may have green leaves. The optical spectrum is sometimes considered to be the same as the visible spectrum, but some authors define the UV light sits directly to the left, or below, blue/violet visible light (hence the name, ultra-violet), and is too short a wavelength to be visible to the human eye. Oct 16, 2014 · We concluded the last blog with a question: Which type of light do you feel is more dangerous to your patients, UV light or visible light including blue light? Of course, answers to questions can Sep 27, 2016 · Blue light has a wavelength of between approximately 380nm and 500nm which makes it the shortest, highest-energy wavelength. FACTS ABOUT BLUE LIGHT Blue light is part of the visible light spectrum, with wavelengths of about 415 nm to 495 nm. The entire visible light spectrum comprises wavelengths ranging from 380 nm to 780 nm. May 4, 2025 · UV light While plants do not require UV light to grow, it can be beneficial in moderation. It is outlined in color spectrum charts. Light that has a wavelength between 400 nm and 800 nm is visible, while light that falls below 400 nm is considered invisible, ultraviolet light. Longer-wavelength radiation such as visible light is nonionizing; the photons do not have sufficient energy to ionize atoms. From ultraviolet (UV) to visible (VL) and infrared (IR) light, each wavelength interacts uniquely with Apr 1, 2023 · Learn about ultraviolet light, which is also known as UV light, ultraviolet radiation, or black light. 5. How does it work? The bacteria in acne release Protect your eyes from harmful blue light emitted from digital screens and the sun. To visualize the color of the smallest visible wavelength, think of the blue-ish purple light emitted by a black light. The harmful blue light wavelength sits in this spectrum between 380 and 500 nanometers, just below green light and above UV light. 3 When light in the blue-violet range hits the eye, a process unique to this band of wavelength occurs. May 18, 2021 · The biggest difference between Bluelight and UV lateral CIPP systems is the wavelength of the light used. Apr 2, 2024 · The visible light spectrum runs between 380 to 780 nanometers. It has a wavelength ranging from 100 to 400 nanometers. Ultraviolet radiation, also known as simply UV, is electromagnetic radiation of wavelengths of 10–400 nanometers, shorter than that of visible light, but longer than X-rays. Anyone using phosphorescent or fluorescent paint and wants the best results possible will also need to understand black lights and the long wave ultraviolet light they emit. Mar 27, 2023 · LED Tailor Oy is a leading specialist in light-based disinfection technologies. The closer May 7, 2025 · The only difference between UV and visible light is wavelength and frequency which together determine photon energy. Jul 11, 2019 · Blue light concerns often originate from the wavelength's proximity to ultraviolet (UV) light on the electromagnetic spectrum; visible blue light (420-480 nm) stops just short of the invisible UV (10-400 nm) band. Jun 10, 2025 · The visible spectrum includes the range of light wavelengths that can be perceived by the human eye in the form of colors. 315-400 nm UVA and near-ultraviolet light UVA and near ultraviolet light from 315-400 nm is considered one of the longest UV light wavelengths and it can enhance plant pigmentation, thicken leaves and may even help manage insect populations. Fluorescence During fluorescence imaging, the item being inspected absorbs a shorter wavelength of light (usually ultraviolet (UV) light) that excites a specific fluorophore, causing it to release photons that fluoresce and emit light at a longer wavelength. As you may recall, different wavelengths of visible light appear as different colors to us. , the wavelength of the photoinitiator) to facilitate optimal polymerization. Not all UV wavelengths are capable of producing sufficient fluorescence effects, so you could be completely missing the mark, by purchasing the wrong wavelength. When certain materials are exposed to black light, they fluoresce —absorbing the ultraviolet energy and emitting May 2, 2024 · The visible light spectrum, measured in wavelengths, is the range of electromagnetic radiation we can see. It has the shortest wavelength of all visible light, and, therefore, has the highest energy of the visible light spectrum. 5 days ago · Researchers photographed specimens under UV light alone, then through a yellow UV-filtering lens to reduce visual noise from UV and blue wavelengths. Typically, the human eye can detect wavelengths from 380 to 700 nanometers. Introduction Blue light acne treatment is a non- invasive procedure that uses light in the blue wavelength range of 405-420 nm to kill the Propionobacterium acnes or P. Apr 13, 2023 · UV-A This light — sometimes called “black light” — has the longest wavelength and causes the least amount of harm to the eyes. Although UV waves are invisible to the human eye, some insects, such as bumblebees, can see Blue light is a category of visible light with a wavelength roughly between 380 and 500 nanometers (nm). com: FreeMascot New Professional OD 6+ 190nm-490nm Wavelength UV light/Violet & Blue Laser Safety Glasses for 405nm, 445nm, 450nm,473nm Laser (Black) : Tools & Home ImprovementWhy Laser Safety? Even at lower power output levels, it is possible to cause irreversible ocular injury from a single accidental exposure to a direct or reflected laser beam, depending on the wavelength, output Aug 8, 2025 · Astronomers use light and the different wavelengths or colors at which it radiates to uncover the mysteries of the universe. Sep 8, 2025 · A: Blue light has a wavelength of 400–500 nm, whereas UV light ranges from 100–400 nm, falling outside the visible spectrum. Learn about the risks and how to minimize them. The light that human eyes can see, as it bounces off objects, has wavelengths of between 380 and 700 nanometres. Although optimal wavelengths can vary across materials and objects, most fluorescence is strongest in the wavelengths around Dec 9, 2024 · Blue light is a wavelength found naturally in sunlight, but electronic devices and some lightbulbs have increased our exposure to this light. It is also produced by electric arcs, Cherenkov radiation, and specialized lights, such as mercury Although the dangers of UV rays from the sun have been known for years, we are only now recognizing that visible blue light from digital screens (and sunlight) also may pose risks to the health of our eyes. Those numbers are the main wavelength of the light put out in nanometers with higher being closer to visible blue light. Learn the different colors, their wavelength, frequency and applications. What do clinical The chart below shows the respective wavelengths (in nm) that different types of UV lamps produce, and where they fall on the UV spectrum. It carries more energy than the light we see and is responsible for tanning, sunburns, and skin cancer. There's still some visible light, but not nearly as much as ~400nm. Nov 14, 2014 · Using nanometers, violet, blue, green, yellow, orange, and red light have wavelengths between 400 and 700 nanometers. Digital electronic devices emit blue light. Discover how varying wavelengths influence photosynthesis, morphology, and overall plant health. Q: Is blue light harmful like UV light? In fact, the highest energy (shortest wavelength) blue light rays have nearly as much energy as invisible UV rays that have been shown to be damaging to the eyes. e. With UV+420cut™ technology, specially treated dye with UV and HEY blue filters are added to the lens material (in-mass). Blue light has shorter wavelengths than UV light and can penetrate deeper into the skin. What is light? How does light affect human health? This Joovv explainer breaks down light, the wavelength chart, energy, and how different colors of sunlight like red light and near infrared (NIR) light have specific health benefits. Violet light's 405 nm short wavelength, on the visible spectrum, causes fluorescence in some chemicals, like radiation in the ultraviolet ("black light") spectrum (wavelengths less than 400 nm). White light is dispersed by a glass prism into the colors of the visible spectrum. The electromagnetic (EM) spectrum spans many types of radiation, from long-wavelength radio waves, through infrared, visible, and ultraviolet "light" and gamma rays and x-rays. That’s why UV light, with its extremely short wavelengths, can ionise atoms and damage cells. Advantages of blue light over UV transilluminators Unlike UV transilluminators, which often use fluorescent UV bulbs with shorter lifespans, LED transilluminators offer a longer-lasting and safer option that’s increasingly becoming the choice in molecular biology labs. Our atmosphere generally protects us from UV radiation below 280 nm. Other forms of electromagnetic radiation are like light in many ways; they are just at different wavelengths that the human eye cannot see. UV Light What is Ultraviolet Light? UV (Ultraviolet) Light refers to the region of the electromagnetic spectrum between visible light and X-rays, with a wavelength falling between 400 and 10 nanometers. Nov 3, 2021 · Non-visible light includes ultraviolet (UV) and infrared light, while visible light includes the whole spectrum of the rainbow, including blue light. Each point, or pixel, in an astronomical image may represent temperature, a wavelength of light, or the intensity of the signal. Mar 24, 2025 · Because of their restorative properties, longer wavelength (red/infrared) light offsets and balances the high energy (blue, violet, UV) wavelengths in sunlight. Although we see sunlight (or white light) as uniform or homogeneous in color, it is actually composed of a broad range of radiation wavelengths in the ultraviolet (UV), visible and infrared (IR) portions of the spectrum. What is the wavelength of UVa, UVb, and UVc light measured in nanometers, and frequency (in Hz)? Asked by: Richard M. Visible light is a form of electromagnetic radiation. That means blue light is not represented by a single color, but all the shades between ultra-violet and green: Like Kevin Hart, these wavelengths are particularly short and intense in energy. Blue light could be bad for our eyes, but it is also beneficial for our health. In industrial applications this fluorescence is most often a blue color. Apr 19, 2018 · UV (ultraviolet rays) - is an electromagnetic radiation with a wavelength from 10 nm to 400 nm, shorter than that of visible light but longer than X-rays. UV LED lamp systems have enough power to conquer a wide range of applications. iv9fs ngfo qzh4wn cpbnah t3 x5i ui6 bgeb j4m3wuc gafjtv