Low pressure lamps run at lower temperatures (around 45°C ) and operate far more efficiently than their medium pressure counterparts (around 35% output at 254nm). Low-pressure mercury lamps emit a single output at 253.7 nm; the total output power of the lamp is equivalent to the output power in the UVC range, albeit at a non-optimal wavelength. This output at 253.7nm is highly effective to inactive microorganisms such as algae, bacteria, virus, yeast and mold. Alibaba.com offers 154 low pressure mercury uvc lamps products. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. Measuring UVC low-pressure mercury lamp. Unlike high-pressure lamps, the glass that is used in low-pressure lamps filters out all UVC. Add to Compare. We also use third-party cookies that help us analyze and understand how you use this website. We adapt our UV lamps exactly to the needs of our customers, whether standard low-pressure lamps, high-output lamps or amalgam lamps. UVC refers to short wavelength electromagnetic radiation in the range 100–280 nm. The lamps come in both standard and high output selections and are ozone free. Instead of mercury, amalgam can be used in low-pressure amalgam (LPA) lamps, resulting in an extremely long life while ensuring high-power outlet. The filaments used in HO lamps provide a more controlled cold spot, enabling them to yield up to two-thirds more UVC output. We supply highly developed control units for UVC low-pressure lamps and UV medium-pressure lamps with support to plant manufacturers in the design of their UV installation. This category only includes cookies that ensures basic functionalities and security features of the website. UV Germicidal Low Pressure Mercury-Arc (GRM), © 2020 Ushio America, Inc. All rights reserved. While operation is formed a plasma emits UV radiation. Moreover, amalgam lamps are not affected by temperature fluctuations. LS125 + UVC-X0 UV dosimeter. In the realm of UV disinfection, long have low pressure mercury vapour lamps (LPMVL) been used for water, air and surface disinfection purposes. Used to detect the UVGI light intensity and UV dose of low-pressure mercury lamp Spectral response range: 230-280nm, λp = 254nm UVGI light intensity measurement range: 0-200000μW / cm ² UV dose measurement range: 0-9999999μJ / cm² . UVC low pressure lamps uv-technik Speziallampen GmbH has been developing, manufacturing and marketing UVC low-pressure lamps for more than 25 years. Standard low-pressure mercury lamps made of synthetic or natural quartz glass have spectral output at 254 nm and 185 nm and are ozone-generating. Add to Wish List. Premier UV Light Bulb Manufacturer for OEMs Worldwide. Model: LS125+UVC-X0 . In a 2018 study, researchers sought to find out if cleaning indoor air with UVGI lessens contact infections. A continuous low pressure mercury (LPM) lamp is a gas discharge lamp that emits continuous radiation in a narrow UV spectrum. Amalgam lamps use a mercury amalgam mix to control mercury vapor pressure. Our products are used world-wide in a multitude of applications and industries such as our UV germicidal lamps that offer patent-protected, OEM-oriented solutions. The optical and electrical parameters of low-pressure (LP) ultraviolet (UV) lamps are closely related to the mercury vapor pressure in the lamp, which in turn are closely related to the temperature. LPMVL’s are still widely considered to be the best lamp type for many of the above applications however, in recent time’s amalgam lamps have fast become the front runner in most forms of water disinfection. As the title of this post suggests, there are two UV lamp-types which are most commonly used in UV systems: medium pressure and low pressure lamps. Our quartz glass lamps are designed to be highly UVC transmissive, with transmission levels at or above 90%. They come in a standard or high output, offering both ozone free and ozone generating solutions. Low-pressure mercury lamps are very similar to a fluorescent lamp, with a wavelength of 253.7 nm (1182.5 THz). These low-pressure lamps have a typical efficiency of approximately thirty to thirty-five percent, meaning that for every 100 watts of electricity consumed by the lamp, it will produce approximately 30-35 watts of total UV output. Our specialty lamp solutions include Quartz Germipak Cell Lamps, Quartz U-Lamps, Quartz Compact Lamps, and Soft Glass Compact Lamps. Liquid mercury droplets collect at the lamp’s “cold spot.”  Once the mercury droplets reach their peak temperature, maximum UVC output occurs. Philips Tubular Fluorescent Ultraviolet (TUV) lamps primarily create UV-C energy at a near-optimal 254.7nm by electrical discharge through low-pressure gas (including mercury vapour) enclosed in a quartz tube. UVC-X0 and UVCWP-X1 are mainly used to detect 254nm low-pressure mercury germicidal lamps, which can be ensured to pass the inspection of the Metrology Institute and obtain a calibration certificate (approved by CNAS and ilac-MRA). Alpha-Purify lamps are guaranteed for 8,000 hours. With our proprietary LongLife+™ coating process, the low pressure mercury lamps have an operating life of up to 16,000 hours, maintaining an end-of-life UVC output of 80%.*. *The medium pressure lamp emits its radiant energy between 250 and 350 with many energy spikes in between (most notably around 320 which is more in the UVB range) with a UVC efficiency around 7-15%. USHIO Germicidal lamps are Low-Pressure Mercury-Arc lamps that emit radiation peaking at 253.7nm (UV-C). Soft Glass Low Pressure. Medium-pressure mercury lamps emit a broader range of wavelengths that include the germicidal range, but also unnecessary wavelengths for disinfection purposes (as shown in Figure 1). This has shown to have germicidal effects. The effect this has is that although similar in size, they’re cheaper, cost less to run and are far safer to be around (Your unlikely to get burned or scalded if there is no flow through the chamber for a prolonged period). These lamps are typically about 30% efficient at converting input power into ultraviolet C (UVC) radiation. UVC low pressure lamps consist of a discharge tube made of quartz glass or UV transparent glass. The peak wavelength of ultraviolet light emitted by low-pressure mercury lamps is 253.7nm. Such Low Pressure Mercury Lamps are used extensively for disinfection and surface (cleaning and modification) process to increase surface tension and adhesion power. +44 1576 220246 (Europe Germicidal) Often called germicidal or ozone absorption lamps, they are very stable light sources. The Low Pressure UV Lamps, also called “germicidal lamps”, exploit UVC light to get the rapid sterilization of bacteria, molds, fungi, viruses and microorganisms both in air and in water.In this category of lamps about 40% of electricity is converted directly into UVC radiation with monochromatic emission at 254 nm for germicidal applications and at 185 nm for the oxidation of surfaces. Introducing the UVC Corn Light with Tripod, a lamp that allows you to sanitize and disinfect your room conveniently. 1-800-826-9465 (North America) The most common form of germicidal lamp looks similar to an ordinary fluorescent lamp but the tube contains no fluorescent phosphor.In addition, rather than being made of ordinary borosilicate glass, the tube is made of fused quartz or vycor 7913 glass. Conventional UV air purifiers use low-pressure mercury vapor lamps to emit UV-C radiation. There is environmental concern, because it contains mercury. Low-pressure mercury lamps. It is mandatory to procure user consent prior to running these cookies on your website. Necessary cookies are absolutely essential for the website to function properly. The most common form of germicidal lamp looks similar to an ordinary fluorescent lamp but the tube contains no fluorescent phosphor. When a mercury vapor lamp is first turned on, it will produce a dark blue glow because only a small amount of the mercury is ionized and the gas pressure in the arc tube is very low, so much of the light is produced in the ultraviolet mercury bands. Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. LED germicidal lamps are currently available in a variety of types. Its humanitarian value has had worldwide success since. The UV lamps are suitable for most applications in air and water. Amalgam lamps are able to achieve ten times the UV power density of standard low pressure lamps and five times more ozone production while operating at a higher temperature than conventional low pressure mercury lamps. UVC LEDs can be manufactured to target … +86 21 52662921 (China). The lamp unit displays an external cladding tube 1 which surrounds a UV lamp 2 in the form of an amalgam mercury low pressure UV lamp. These cookies will be stored in your browser only with your consent. Following exposure to UVC, spores were recovered from the coupons and efficacy was quantified in terms of log Amalgam UV lamps contain solid “spots” which consist of an alloy of mercury and another element, such as indium or gallium. Our low pressure mercury lamp technologies offer clients a wide range of solutions. Lamp output in the UV range depends on the amount of mercury and vapor pressure of mercury in the lamp. Tru-D’s bulbs are as safe as any low pressure mercury vapor fluorescent bulb in your facility and pose no danger to staff or families. While operation is formed a plasma emits UV radiation. You also have the option to opt-out of these cookies. These lamps have a much broader spectral distribution that includes germicidal wavelengths. The UV lamps for water treatment consist of specialized low-pressure mercury-vapor lamps that produce ultraviolet radiation at 254 nm, or medium-pressure UV lamps that produce a polychromatic output from 200 nm to visible and infrared energy. Like Standard LP lamps, Amalgam LP lamps are considered to be monochromatic with a significant 254nm output peak. The gas discharge source is mainly a low-pressure mercury lamp. Thus a temperature change will cause a substantial change in the UV lamp output. Positive controls were held at ambient conditions and not exposed to UVC light. Low-pressure mercury lamp: Historically, the most common type of lamp used to produce UVC radiation was the low-pressure mercury lamp, which has its main (>90%) emission at 254 nm. Low pressure mercury vapor lamps provide the most efficient delivery of UVC energy for use in the health care environments. LightSources and our affiliated companies represent the leading high-tech designers and manufacturers in the lamp industry today. Please refresh page if buttons are not loading specifications. They have a germicidal efficiency of 30% and can operate on lower current (between 180 and 425mA). The UV lamps are suitable for most applications in air and water. LightSources. The dominant emission (>90%) from these lamps is UV-C energy. Extensive research has led to the development of today's highly efficient and compact germicidal lamps. UVC LEDs can be manufactured to target very specific and narrow wavelengths. Chinese (Simplified). "The ionizing radiation standard covers alpha, beta, gamma, and X-rays; neutrons; high-speed electrons and protons; and other atomic particles; but does not include sound or radio waves, or visible, infrared, or ultraviolet light. Quartz glass is more resistant to solarization, a by-product of UV lamp operation. quartz quartz glass production methods quartz properties plates and disks rods tubes and domed tubes customized items and laboratory material equipment. LP, Amalgam LP and MP lamps are mercury based arc lamps, differing primarily by electrical excitation and ionization levels of the mercury within the lamp and corresponding internal pressures. Low-pressure mercury lamps (fluorescent tubes) and high-pressure mercury lamps are also used for disinfection and sterilisation. Heraeus has developed a compact low pressure, low voltage Mercury vapour lamp type HG2, principally for use in scientific instrumentation. Rather than a “cold spot,” the lamp’s “amalgam spot on pellet” regulates mercury vapor pressure during operation and yields up to three times the UVC output of a standard low pressure mercury lamp of the same length. 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