Medium-Pressure UVC Lamps
Our Noblelight UV medium-pressure lamps produce a broad and distinct line spectrum across the ultraviolet and visible ranges (200 nm to 600 nm), delivering a high power density of approximately 100 W/cm². These lamps are ideal for UVC disinfection, oxidation, curing, and various photochemical processes. Additionally, different additives can be used to customize our UV medium-pressure lamps to meet your specific needs.
Types of UVC Medium-Pressure Lamps
Standard UV medium-pressure lamps: These lamps provide a high radiation output in the UVC range, offering an effective disinfection capability.
High-performance UV medium-pressure lamps: Due to their reduced size, these lamps have an increased UVC output and deliver strong disinfection and oxidation effects.
Furthermore, adding metal halide can optimize the spectral output for photochemical applications.
Lamps contain mercury. Manage in accordance with local, state or federal disposal laws.
| Standard Lamps | High Performance Lamps | |
| Preferred application | Disinfection | Disinfection and oxidation |
| Efficient spectral range | 200 - 300 nm | 200 - 300 nm |
| Specific electrical power | 80 - 120 W/cm | 120 - 250 W/cm |
| Specific UVC radiant flux | 12 - 18 W/cm | 18 - 40 W/cm |
| Power range | 0.4 - 10 kW | 1 - 60 kW |
| Dimensions/lamp length | 4 - 150 cm | 7 - 200 cm |
| Lamp diameter | 15 - 28 mm | 19 - 45 mm |
| Surface temperature | 600 - 900°C | 800 - 900°C |
| Typical service life | 1,500 - 10,000 h | 1,500 - 10,000 h |
- Well-designed within a compact size: Compact UV systems can be installed in high throughput applications
- Low investment cost
- Fewer lamps requried
- Increased stability due to its round seal at the lamp base
- Optimized spectrums for photochemical applications with the use of additional metal halides
- Disinfection of water
- Photochemistry
- Decomposition of pollutions, activated wet oxidation (AOP)
- Drying and curing of coatings
| Standard Lamps | High Performance Lamps | |
| Preferred application | Disinfection | Disinfection and oxidation |
| Efficient spectral range | 200 - 300 nm | 200 - 300 nm |
| Specific electrical power | 80 - 120 W/cm | 120 - 250 W/cm |
| Specific UVC radiant flux | 12 - 18 W/cm | 18 - 40 W/cm |
| Power range | 0.4 - 10 kW | 1 - 60 kW |
| Dimensions/lamp length | 4 - 150 cm | 7 - 200 cm |
| Lamp diameter | 15 - 28 mm | 19 - 45 mm |
| Surface temperature | 600 - 900°C | 800 - 900°C |
| Typical service life | 1,500 - 10,000 h | 1,500 - 10,000 h |
- Well-designed within a compact size: Compact UV systems can be installed in high throughput applications
- Low investment cost
- Fewer lamps requried
- Increased stability due to its round seal at the lamp base
- Optimized spectrums for photochemical applications with the use of additional metal halides
- Disinfection of water
- Photochemistry
- Decomposition of pollutions, activated wet oxidation (AOP)
- Drying and curing of coatings
Additional Resources
Excelitas’s Noblelight Medium-Pressure UVC Lamps emit a broad line-spectrum across ultraviolet and visible wavelengths (200 nm to 600 nm) and deliver high power density — approximately 100 W/cm² in standard models. These lamps are purpose-built for applications such as UVC disinfection, oxidation, curing, and various photochemical processes where high irradiance and compact reactor design matter.
The medium-pressure lamps are differentiated by broad spectral output and high UVC flux. According to the specification sheet, they are capable of UVC radiant flux ranging from 12-18 W/cm (standard models) up to 18-40 W/cm (high-performance versions).
They operate at surface temperatures of 600–900 °C (standard) or up to 900 °C (high-performance), and are available in power ranges from 0.4 kW up to 60 kW depending on model variant. The higher power density allows for smaller reactor volumes, higher penetration depth, and reduced system footprint.
Medium-Pressure UVC Lamps are well-suited for water and liquid disinfection, advanced oxidation processes (AOP), air purification, photochemistry, and even curing tasks that demand high power. In AOP systems, they support the decomposition of organic compounds and help reduce total organic carbon (TOC) in treated water. By customizing the gas fill, quartz material, and additives, we can optimize the spectral output for specific disinfection or photochemical applications.
These lamps are offered in two main performance bands:
- Standard Medium-Pressure: specific electrical power 80–120 W/cm, UVC radiant flux 12–18 W/cm, lamp power 0.4–10 kW, diameter 15–28 mm, arc length 4–150 cm.
- High-Performance Medium-Pressure: specific electrical power 120–250 W/cm, UVC radiant flux 18–40 W/cm, lamp power 1–60 kW, diameter 19–45 mm, arc length 7–200 cm.
When selecting a lamp, system designers should evaluate electrical power, tube geometry, spectral output, and heat load.
Because medium-pressure lamps deliver high UVC output in a compact form, they allow for smaller reactor footprints, deeper penetration in fluids or surfaces, and higher throughput. Their broadened emission spectrum supports both germicidal action (UVC) and oxidation/curing tasks (200-600 nm region).
Their flexibility means fewer lamps may be required, reducing maintenance costs and simplifying system design. Additionally, customization options allow tailoring of spectral output and lamp geometry to specific applications.
Excelitas offers these lamps with various base types, connects to appropriate ballasts, and supports modular system design. Because of the high power and broad spectrum, integrators should ensure proper cooling, shielding, and lamp housing design for reliable operation. Our engineering teams provide guidance to align operating conditions, mounting orientation and service interval planning.