Devices that use UV light to kill a range of dangerous bacteria and viruses
Devices that use UV light to kill a range of dangerous bacteria and viruses. Buy from Chinese and Alibaba suppliersBuying products from Chinese suppliers who show their products on Alibaba websites and selling them in your country is undoubtedly a very profitable business.
Here you can see products from the category Germicidal UV LED or Germicidal UV Lamp. To get the best prices, have a safe purchase, shipping and delivery guarantee, it's worth using the services of a Chinese agent such as our company. So if you are an Wholesale Buyer or Online Seller thinking about importing in bulk from China and selling in your country, just contact us, we will help you grow your business. |
|
Germicidal lamp - what is this
A germicidal lamp is a special type of lamp that produces ultraviolet C (UVC) light. This short-wave ultraviolet light disrupts DNA base pairing, causing formation of pyrimidine dimers, and leads to the inactivation of bacteria, viruses, and protozoa. It can also be used to produce ozone for water disinfection.
There are three common types available:
Low pressure lamps
Low-pressure lamps are very similar to a fluorescent lamp, with a wavelength of 253.7 nm (1182.5 THz).
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. These two changes combine to allow the 253.7 nm ultraviolet light produced by the mercury arc to pass out of the lamp unmodified (whereas, in common fluorescent lamps, it causes the phosphor to fluoresce, producing visible light). Germicidal lamps still produce a small amount of visible light due to other mercury radiation bands.
An older design looks like an incandescent lamp but with the envelope containing a few droplets of mercury. In this design, the incandescent filament heats the mercury, producing a vapor which eventually allows an arc to be struck, short circuiting the incandescent filament.
Rapid development through the last two decades led to the so-called excimer lamp which has a number of advantages over other sources of ultraviolet and even vacuum ultraviolet radiation.
High pressure lamps
High-pressure lamps are much more similar to HID lamps than fluorescent lamps.
These lamps radiate a broad-band UVC radiation, rather than a single line. They are widely used in industrial water treatment, because they are very intense radiation sources. They are as efficient as low-pressure lamps. High-pressure lamps produce very bright bluish white light.
Light emitting diodes (LEDs)
Recent developments in light-emitting diode (LED) technology have led to the commercial availability of UVC LED sources.
UVC LEDs use semiconductor materials to produce light in a solid-state device. The wavelength of emission is tuneable by adjusting the chemistry of the semiconductor material, giving a selectivity to the emission profile of the LED across, and beyond, the germicidal wavelength band. Advances in understanding and synthesis of the AlGaN materials system led to significant increases in the output power, device lifetime, and efficiency of UVC LEDs in the early 2010s.
The reduced size of LEDs opens up options for small reactor systems allowing for point-of-use applications and integration into medical devices. Low power consumption of semiconductors introduce UV disinfection systems that utilized small solar cells in remote or Third World applications.
By 2019 LEDs made up 41.4% of UV Light Sales, up from 19.2% in 2014. The UV-C LED global market is expected to rise from $223m in 2017 to US$991m in 2023.
Auxiliary equipment
As with all gas discharge lamps, all of the styles of germicidal lamps exhibit negative resistance and require the use of an external ballast to regulate the current flow through them. The older lamps that resembled an incandescent lamp were often operated in series with an ordinary 40 W incandescent "appliance" lamp; the incandescent lamp acted as the ballast for the germicidal lamp.
Uses
Germicidal lamps are used to sterilize workspaces and tools used in biology laboratories and medical facilities. If the quartz envelope transmits wavelengths shorter than 253.7 nm, they can also be used wherever ozone is desired, for example, in the sanitizing systems of hot tubs and aquariums. They are also used by geologists to provoke fluorescence in mineral samples, aiding in their identification. In this application, the light produced by the lamp is usually filtered to remove as much visible light as possible, leaving just the UV light. Germicidal lamps are also used in waste water treatment in order to kill microorganisms.
The light produced by germicidal lamps is also used to erase EPROMs; the ultraviolet photons are sufficiently energetic to allow the electrons trapped on the transistors' floating gates to tunnel through the gate insulation, eventually removing the stored charge that represents binary ones and zeroes.
Ozone production
For most purposes, ozone production would be a detrimental side effect of lamp operation. To prevent this, most germicidal lamps are treated to absorb the 185 nm mercury emission line (which is the longest wavelength of mercury light which will ionize oxygen).
In some cases (such as water sanitization), ozone production is precisely the point. This requires specialized lamps which do not have the surface treatment.
Safety concerns
Short-wave UV light is harmful to humans. In addition to causing sunburn and (over time) skin cancer, this light can produce extremely painful inflammation of the cornea of the eye, which may lead to temporary or permanent vision impairment. For this reason, the light produced by a germicidal lamp must be carefully shielded against direct viewing, with consideration of reflections and dispersed light. A February 2017 risk analysis of UVC lights concluded that ultraviolet light from these lamps can cause skin and eye problems.
Source: https://en.wikipedia.org/wiki/Germicidal_lamp
There are three common types available:
- Low-pressure lamps
- High-pressure lamps
- LEDs
Low pressure lamps
Low-pressure lamps are very similar to a fluorescent lamp, with a wavelength of 253.7 nm (1182.5 THz).
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. These two changes combine to allow the 253.7 nm ultraviolet light produced by the mercury arc to pass out of the lamp unmodified (whereas, in common fluorescent lamps, it causes the phosphor to fluoresce, producing visible light). Germicidal lamps still produce a small amount of visible light due to other mercury radiation bands.
An older design looks like an incandescent lamp but with the envelope containing a few droplets of mercury. In this design, the incandescent filament heats the mercury, producing a vapor which eventually allows an arc to be struck, short circuiting the incandescent filament.
Rapid development through the last two decades led to the so-called excimer lamp which has a number of advantages over other sources of ultraviolet and even vacuum ultraviolet radiation.
High pressure lamps
High-pressure lamps are much more similar to HID lamps than fluorescent lamps.
These lamps radiate a broad-band UVC radiation, rather than a single line. They are widely used in industrial water treatment, because they are very intense radiation sources. They are as efficient as low-pressure lamps. High-pressure lamps produce very bright bluish white light.
Light emitting diodes (LEDs)
Recent developments in light-emitting diode (LED) technology have led to the commercial availability of UVC LED sources.
UVC LEDs use semiconductor materials to produce light in a solid-state device. The wavelength of emission is tuneable by adjusting the chemistry of the semiconductor material, giving a selectivity to the emission profile of the LED across, and beyond, the germicidal wavelength band. Advances in understanding and synthesis of the AlGaN materials system led to significant increases in the output power, device lifetime, and efficiency of UVC LEDs in the early 2010s.
The reduced size of LEDs opens up options for small reactor systems allowing for point-of-use applications and integration into medical devices. Low power consumption of semiconductors introduce UV disinfection systems that utilized small solar cells in remote or Third World applications.
By 2019 LEDs made up 41.4% of UV Light Sales, up from 19.2% in 2014. The UV-C LED global market is expected to rise from $223m in 2017 to US$991m in 2023.
Auxiliary equipment
As with all gas discharge lamps, all of the styles of germicidal lamps exhibit negative resistance and require the use of an external ballast to regulate the current flow through them. The older lamps that resembled an incandescent lamp were often operated in series with an ordinary 40 W incandescent "appliance" lamp; the incandescent lamp acted as the ballast for the germicidal lamp.
Uses
Germicidal lamps are used to sterilize workspaces and tools used in biology laboratories and medical facilities. If the quartz envelope transmits wavelengths shorter than 253.7 nm, they can also be used wherever ozone is desired, for example, in the sanitizing systems of hot tubs and aquariums. They are also used by geologists to provoke fluorescence in mineral samples, aiding in their identification. In this application, the light produced by the lamp is usually filtered to remove as much visible light as possible, leaving just the UV light. Germicidal lamps are also used in waste water treatment in order to kill microorganisms.
The light produced by germicidal lamps is also used to erase EPROMs; the ultraviolet photons are sufficiently energetic to allow the electrons trapped on the transistors' floating gates to tunnel through the gate insulation, eventually removing the stored charge that represents binary ones and zeroes.
Ozone production
For most purposes, ozone production would be a detrimental side effect of lamp operation. To prevent this, most germicidal lamps are treated to absorb the 185 nm mercury emission line (which is the longest wavelength of mercury light which will ionize oxygen).
In some cases (such as water sanitization), ozone production is precisely the point. This requires specialized lamps which do not have the surface treatment.
Safety concerns
Short-wave UV light is harmful to humans. In addition to causing sunburn and (over time) skin cancer, this light can produce extremely painful inflammation of the cornea of the eye, which may lead to temporary or permanent vision impairment. For this reason, the light produced by a germicidal lamp must be carefully shielded against direct viewing, with consideration of reflections and dispersed light. A February 2017 risk analysis of UVC lights concluded that ultraviolet light from these lamps can cause skin and eye problems.
Source: https://en.wikipedia.org/wiki/Germicidal_lamp
Alibaba Purchasing Agent who can help you in sourcing on Alibaba.comOur company can be your sourcing agent in China. We can help you source goods on Alibaba.com and Aliexpress.com, on 1688.com and Taobao.com or Tmall.com as well.
We help companies that sell on Amazon and on eBay. We help in wholesale purchases from China but also in dropshipping:
Direct contact with us: Mobile/WeChat: 008613926250504 Email: drt@agentpurchase.com (English, Chinese) |
|
What is Alibaba.comALIBABA.COM is leading wholesale marketplace for global trade
The first business of Alibaba Group, Alibaba.com (www.alibaba.com) is China’s largest integrated international online wholesale marketplace in 2018 by revenue, according to Analysys. Buyers on Alibaba.com were located in more than 190 countries as of March 31, 2019. Buyers on Alibaba.com are typically trade agents, wholesalers, retailers, manufacturers and SMEs engaged in the import and export business. Alibaba.com also offers its members and other SMEs import/export supply chain services, including customs clearance, trade financing and logistics services. |
|
What is Taobao.comTAOBAO MARKETPLACE is China’s largest mobile commerce destination.
Launched in 2003, Taobao Marketplace (www.taobao.com) provides consumers with an engaging, personalized shopping experience, optimized by big-data analytics. Through highly relevant and engaging content and real-time updates from merchants, consumers can learn about products and new trends. They can also interact with each other and their favorite merchants and key opinion leaders. Merchants on Taobao Marketplace are primarily individuals and small businesses. According to Analysys, Taobao Marketplace was China’s largest mobile commerce destination, with a large and growing social community, in terms of GMV for the 12 months ended March 31, 2019. Taobao Marketplace is a business of Alibaba Group. |
|
What is 1688.com1688.com is leading integrated domestic wholesale marketplace in China
Launched in 1999, 1688.com (www.1688.com) is China’s leading integrated domestic wholesale marketplace in 2018 by revenue, according to Analysys. It connects wholesale buyers and sellers in China who trade in apparel, general merchandise, home decoration and furnishing materials, electronics, packaging materials and shoes, among others. 1688.com is a business of Alibaba Group. |
|
What is Aliexpress.comALIEXPRESS is Global retail marketplace
Launched in 2010, AliExpress (www.aliexpress.com) is a global marketplace targeting consumers from around the world and enabling them to buy directly from manufacturers and distributors in China and around the world. In addition to the global English-language site, the AliExpress app is also available in 17 local languages, including Russian, Portuguese, Spanish and French. Top consumer markets where AliExpress is popular are Russia, the United States, Brazil, Spain and France. AliExpress is a business of Alibaba Group. |
|
What is Tmall.comTMALL is World’s largest third-party online and mobile commerce platform for brands and retailers
Launched in 2008, Tmall (www.tmall.com) caters to consumers’ ever-growing demand for high-quality products and premium shopping experience. A large number of international and Chinese brands and retailers have established storefronts on Tmall. In the 12 months ended March 31, 2019, Tmall was the largest third-party online and mobile commerce platform for brands and retailers in the world in terms of GMV, according to Analysys, and continues to grow quickly. Tmall is a business of Alibaba Group. |
|
Affordable sourcing and production services in China
One of our sourcing company offices is based in Yiwu, Zhejiang, which is China’s leading hub for wholesale products. DRT has a strong digital presence, we offer online consultation to small and big buyers and online product sourcing service.
All we need is a product name and we will get back to you with price quotations from several suppliers in our network. We also also offers affordable product sampling, production follow-up and quality control services, to ensure that you’re covered from start to finish. Our services are for small businesses and Amazon sellers looking for affordable sourcing and production services in China. Service overview
|
|
Doing business with China becomes easier with usIn the era of globalization and the development of the Internet, the production on demand and import of products from China is getting easier. However, the best option for a foreign buyer is to focus on developing a business on their own territory, and leaving Chinese professionals to complete their orders in China.
Who we areOur company China Import Export Agent has been handling foreign importers for most than ten years. For the past seven years we have also been working on a full-scale implementation of dropshipping. We sell wholesale quantities of products according to customers orders. We find the best and most interesting products for our customers.
Our company is sourcing agent, dropshipping, manufacturer, logistics and trading company based in Guangzhou (Canton), China. We have also regional representative in EU. We organize the whole process from selecting the manufacturer, by supervising the production, collecting the finished products, preparing for the shipment and sending to the destination country. We operate in two of the world's major wholesale markets. The first is the Guangzhou-Shenzhen zone, the global center for electronics, drones, fancy goods, clothing, machinery, equipment and plastic products. The second is the world's largest Yiwu Wholesale Market. In Yiwu there are over 100.000 wholesalers with all kinds of products. We also have a strong position in Hunan Province with the capital in Changsha. We invite importers and traders from all over the world to cooperate. DRT GLOBAL CO., LTD
NO.123, Huangyuan Road Baiyun District, Guangzhou, China Mobile/WeChat: 008613926250504 Email: drt@agentpurchase.com (English, Chinese) AgentPurchase.com ChinaAgent.info Stockholm, Sweden EU Email: drt@agentpurchase.com |
What will we do for youWe are sending from China Worldwide hundreds of packages everyday, 7 days a week. Most of goods we are sending by China Post, Air Hong Kong Post, DHL, UPS, EMS and other directly from our warehouses.
We have in our warehouses workers who is collecting goods, packing, shipping, doing all online works and many other works. We speaks English, Chinese, Polish and Russian. Our main markets are US, Russia, Brasil, Arabic Markets, UK, France, Poland, Israel, Belarus, Germany, Ukraine, Italy, Australia, Spain, Nigeria, Korea and other. Our main products are: womens clothing, handbags, wallets, electronic accessories, home & garden products, drones and wholesale goods. Our customers can choose from us hot products to sell on eBay, Amazon, online or in retail. In our OEM factory we are producing womens purses and wallets for Brand Customers from EU, USA and Australia. We offer to our customers:
More info: Contact |
Welcome to China
If you come to Guangzhou, Foshan, Shenzhen, Changsha or Yiwu, we will be your reliable partner and one stop export solution provider. We will take you to visit Guangzhou Market, Shenzhen Electronic Market or Yiwu Wholesale Market and factories in mainland China, help you bargain the price for the goods, translate for you, collect the goods to our warehouse, check quality, load the container and export the container to your country.
