Web Menu

Product Search

Language

Share

UV Germicidal Lamps

UV Germicidal Lamps

-- Steady & Reliable Manufacturer --

Introduction

UV Germicidal Lamps are highly effective light sources specifically engineered to emit ultraviolet light at the 254 nm wavelength, which is the peak wavelength for germicidal action. This UV-C energy is absorbed by the DNA and RNA of microorganisms (viruses, bacteria, and spores), rendering them inactive and unable to reproduce, effectively achieving disinfection. Yancheng Mingyang Quartz Products Co., Ltd. is a key manufacturer of these lamps, specializing in the high-purity quartz envelopes that are essential for maximizing the transmission of the 254 nm energy. We produce both Low-Pressure Mercury Lamps (which emit nearly all energy at 254 nm) and Medium-Pressure UV Lamps (which emit a broad, high-intensity spectrum). The use of high-quality fused quartz ensures superior UV-C transmission over the lamp's entire lifespan and resistance to the thermal stresses inherent in lamp operation.

We manufacture several lamp types, including standard linear tubes, U-shaped, and compact lamps, all designed for maximum efficiency in air, water, and surface sterilization systems. For safety-conscious applications, we offer lamps encased in Ozone-Free Quartz Tubing (doped quartz), which effectively blocks the 185 nm wavelength that creates ozone, while maintaining high germicidal output. We also provide specialized Amalgam Lamps, which utilize amalgam technology to maintain high UV output over a wider range of operating temperatures, crucial for closed-vessel water treatment systems. Our manufacturing process includes automated lamp filling and sealing to ensure consistent mercury dosing and gas pressure, guaranteeing uniform UV output and longevity. We focus on providing OEM partners in the water treatment, HVAC, and medical sectors with reliable, high-performance lamps that meet stringent disinfection requirements globally.

By controlling the quality of the quartz envelope and the lamp filling process, we ensure that our UV germicidal lamps provide long service life and consistent, powerful disinfection capability, making them a cost-effective choice for public health and industrial hygiene.

Specification Parameters

ParameterDetails
Lamp TypeLow-Pressure (LP), Medium-Pressure (MP), Amalgam, U-Shaped, Compact
Peak Emission WavelengthPrimarily 254 nm (UV-C) for germicidal action
Quartz Envelope MaterialClear Fused Quartz (Ozone-generating) or TiO2​-Doped Quartz (Ozone-free)
Rated Lifespan (LP)Typically 8,000 to 12,000 hours (depends on operating cycles)
Operating Temperature (LP)Optimal bulb wall temperature 40∘C (Amalgam extends optimal range)
Wattage Range4 W to 300 W (For single tubes, higher for systems)
Base/End FittingStandard 2-pin, 4-pin, Single End (Custom ceramic caps available)
Ozone GenerationHigh (Clear Quartz) or Negligible (Doped Quartz)

The critical technical specification for UV Germicidal Lamps is the highly efficient 254 nm emission and the selection of the correct Quartz Envelope Material. Clear Fused Quartz transmits both the 254 nm germicidal wavelength and the 185 nm ozone-generating wavelength, which is desirable for applications requiring chemical oxidation (e.g., TOC reduction). However, for air and closed systems where ozone is harmful, the TiO2​-Doped Quartz is mandatory. Our quality control focuses on the purity of the quartz to prevent solarization (darkening) which would prematurely reduce UV output over the Rated Lifespan. The UV output is highly dependent on the bulb wall temperature; thus, the Amalgam Lamps are crucial for high-flow water systems where the lamp envelope can be cooled by the water, as the amalgam pellet ensures the optimal mercury vapor pressure is maintained over a broader temperature range (10∘C to 90∘C), maximizing UV dosage delivery. We provide detailed UV irradiance data to help clients specify the correct dose for their disinfection requirement.

Applications

  • Water Disinfection Systems: Used extensively in municipal drinking water, wastewater treatment, swimming pools, and residential POU (Point-of-Use) systems to eliminate pathogens.

  • Air Purification and HVAC: Installed in air ducts, plenums, and air handling units to neutralize airborne pathogens, mold spores, and viruses in commercial buildings and hospitals.

  • Surface Sterilization: Employed in medical facilities (operating rooms), biosafety cabinets, food production conveyor belts, and packaging equipment to sterilize surfaces.

  • TOC (Total Organic Carbon) Reduction: Ozone-generating lamps are used in the semiconductor and pharmaceutical industries to break down organic impurities in ultra-pure water.

  • Pharmaceutical and Biotech: Integrated into SIP (Sterilize-in-Place) systems and cleanrooms for continuous environmental and process stream sterilization.

  • Horticulture and Aquaculture: Used for pathogen control in irrigation water and fish tank environments.

The effectiveness of our UV lamps in these applications is due to the maximized, consistent UV-C output over the lamp's life. In water treatment, the lamp's ability to provide a consistent UV Dose is paramount for regulatory compliance and public health safety. Our Amalgam lamps specifically address the challenge of varying water temperature, which often limits the efficacy of standard low-pressure lamps. In air disinfection, the choice between ozone-free and ozone-generating lamps allows clients to tailor the lamp to the environment—ozone-free for occupied spaces and ozone-generating for highly contaminated exhaust air or specialized chemical processes. We offer a variety of OEM replacement lamps that are dimensionally and electrically compatible with major brand UV systems, providing a high-quality, cost-effective alternative. Our engineering team can also assist in designing custom UV solutions, including multi-lamp arrays and specialized quartz sleeves, to ensure optimal UV fluence in non-standard reactor geometries.

Advantages

  • Peak Germicidal Efficiency: 254 nm emission wavelength provides the highest energy absorption by microbial DNA/RNA, ensuring effective disinfection.

  • High UV Output Longevity: Manufactured with high-purity quartz envelopes that resist solarization, ensuring sustained UV efficacy throughout the long rated lifespan.

  • Ozone Control Options: Availability of TiO2​-doped quartz for ozone-free operation, meeting HVAC and public safety standards, and clear quartz for oxidation/TOC reduction.

  • Amalgam Technology: Allows for stable, high UV output over a wide temperature range, improving performance in challenging water treatment applications.

  • Versatile Lamp Types: Offering LP, MP, and specialized shapes to fit various reactor designs and achieve desired UV dosage requirements.

  • High-Quality Quartz Envelope: Provides exceptional thermal shock resistance and chemical inertness, making the lamp durable in harsh industrial environments.

The competitive edge of our UV germicidal lamps lies in the superior quality of the quartz envelope, which is a key component of the lamp's performance and lifespan. By managing the purity and transmission characteristics of the quartz in-house, we guarantee that more germicidal UV light reaches the target area. The availability of both standard and specialized amalgam and ozone-free options allows us to serve the entire spectrum of the disinfection market, from residential POU to large municipal plants. Our QC process includes photometric testing of every batch to verify the initial UV intensity and the predicted lifespan output, ensuring the lamps meet or exceed the performance specifications required by regulatory bodies. This reliability makes us a trusted OEM supplier.

Payment and Shipping

We accept standard business payments including T/T and L/C at sight. For high-volume, continuous supply contracts with water treatment and HVAC $\text{OEM}$s, we negotiate bulk pricing and managed inventory programs to ensure supply continuity.

Shipping Protocol for Lamps: Fragile glass tubes require specialized anti-shock packaging.

  • Individual Sleeving and Cradles: Each lamp is individually sleeved in foam or protective film and secured within custom-cut foam or cardboard cradles that support the glass tube and protect the electrical contacts.

  • Reinforced Packaging: Multiple units are boxed in reinforced, multi-layer cartons designed to handle mechanical shock during transit.

  • Freight: We use reliable express air freight for global delivery to minimize transit time and handling risk. All lamps are fully insured, and we provide material safety and handling data.

Lead times for high-volume standard lamps are typically 15−20 working days. Custom MP or unique base lamps may require 4−6 weeks for fabrication and testing. We guarantee safe delivery of these fragile, critical components.

Frequently Asked Questions (FAQ)

  • Q: What is the main difference between Low-Pressure (LP) and Medium-Pressure (MP) UV lamps?

  • A: LP lamps are highly efficient, emitting almost all energy at the 254 nm peak. MP lamps are broadband emitters, providing very high UV intensity over a wider spectrum (200 nm to 400 nm) and are used where high UV dosage is required or for chemical oxidation processes.

  • Q: How do Amalgam lamps differ from standard LP lamps?

  • A: Amalgam lamps contain a mercury amalgam pellet which regulates the mercury vapor pressure, allowing the lamp to maintain optimal 254 nm output over a much wider range of operating temperatures (10∘C to 90∘C), essential for cold water or high-temperature air treatment.

  • Q: Does the quartz envelope need cleaning, and how often?

  • A: Yes, especially in water treatment, where deposits (scaling, iron) on the quartz sleeve can block UV light. The sleeve should be visually inspected and chemically cleaned (usually with a mild acid solution) as part of a regular maintenance schedule, often every 3 to 6 months, to maintain UV transmission.

  • Q: Do these lamps generate heat that can affect the water or air being treated?

  • A: Yes, all lamps generate some heat. While most of the energy is UV, a portion is converted to heat (IR and visible light). In water treatment, this heat is quickly dissipated. In air treatment, the heat output is typically accounted for by the HVAC system design.

From Made-in-China to
Global Smart Manufacturing

Yancheng Mingyang Quartz Products Co., Ltd. is a company specializing in the production of quartz and special glass products. Yancheng Mingyang Quartz Products Co., Ltd. is the production plant of Jinzhou Mingde Quartz Glass Co., Ltd. in Jiangsu, Since its establishment, the company has developed rapidly, introduced advanced technology and production equipment at home and abroad, and continuously improved and improved product quality. Relying on its own advantages, we have developed a variety of products suitable for the market and meet the needs of different customers, and solved many urgent production problems for our customers.

The company's products include quartz glass tubes, double-hole quartz glass tubes, quartz glass rods, quartz sheets, sapphire windows, calcium fluoride glass windows, infrared ultraviolet coatings, high-pressure resistant aluminosilicate glass window panels, quartz glass instruments, high borosilicate glass instruments, quartz crucibles, quartz gold-plated tubes, quartz heaters, quartz infrared heating tubes, far-infrared directional radiation heaters ultraviolet germicidal lamps and other special types of quartz glass products.

Yancheng Mingyang Quartz Products Co., Ltd.
Message Feedback
Doped Quartz Tubing for UV Filtration Large Diameter Quartz Tubing for Furnace and UV Reactor Quartz Cuvettes Quartz Cuvettes & Cells