UV low-pressure lamps

UV low pressure lamps

Conventional UV low-pressure lamps made of quartz glass provide excellent efficiency. 40% of the electrical power can be used as 254 nm UVC radiation to disinfect water and air.
If synthetic quartz glass is used as the lamp material, 185 nm UV radiation (vacuum UV) is emitted in addition for oxidation processes such as the decomposition of pollutants, odours and greases.

UV low-pressure lamps are available in various lengths, with various sockets and connections and in rod or U-shape.

  • Conventional high-efficiency low-pressure mercury lamps, spectrum: line at 254 nm, ozone-free.
  • Conventional low-pressure mercury lamps made of synthetic or natural quartz glass, spectrum: lines at 254 nm and 185 nm, ozone-generating

Your advantages

  • High efficiency (40%)
  • Low energy consumption
  • UV lamps tailored to customer requirements
  • Output 30% to 60% higher than with lamps made of soft glass
  • Low surface temperature

Comparison of technical data of UV low-pressure lamps:

Conventional low-pressure lamps

Ozone-free Ozone-generating
Spectrum: Wavelength 254 nm 185 nm, 254 nm
Arc length 10 – 150 cm 10 – 150 cm
Electrical power 5 – 80 W 5 – 80 W
Typical UV efficiency at 254 nm 40% 40%
Typical efficiency at 185 nm, natural quartz glass approx. 6%
Typical efficiency at 185 nm, synthetic quartz glass approx. 9%
Specific UVC flux 0.1 – 0.4 W/cm 0.1 – 0.4 W/cm
Use at ambient temperatures up to max. 40°C up to max. 40°C
Service life 9,000 h with 30% decline of UV intensity 9,000 h with 30% decline of UV intensity

High-output low-pressure lamp

Ozone-free Ozone-generating
Spectrum: Wavelength 254 nm 185 nm, 254 nm
Arc length 10 – 150 cm 10 – 150 cm
Electrical power 10 – 150 W 10 – 150 W
Typical UV efficiency at 254 nm 25–35% 25–35%
Typical efficiency at 185 nm, natural quartz glass approx. 6%
Typical efficiency at 185 nm, synthetic quartz glass approx. 9%
Specific UVC flux 0.2 – 0.5 W/cm 0.2 – 0.5 W/cm
Use at ambient temperatures up to max. 40°C up to max. 40°C
Service life 9,000 h with 30% decline of UV intensity 9,000 h with 30% decline of UV intensity
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