OSRAM PURITEC HNS S 11 W G23 UV-C germicidal lamp – 253.7 nm

€14.90

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OSRAM PURITEC HNS S UV-C germicidal lamp, 11 W, G23 base, 253.7 nm ozone-free radiation. Disinfects air, water and surfaces.

G2311 W253,7 nmUV-C

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The minimum purchase order quantity for the product is 2.

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Description
Product Details

The OSRAM PURITEC HNS S UV-C lamp rated 11 W emits germicidal radiation at 253.7 nm, the wavelength that neutralises the DNA of bacteria, viruses, moulds and algae. Its special glass blocks the 185 nm line: it disinfects without producing ozone.

It fits a G23 base and runs on a standard fluorescent ballast of the same wattage — a direct replacement in your steriliser, purifier or clarifier, with the unit powered off.

Direct cross-references: OSRAM PURITEC HNS S 11 W — this product, PHILIPS TUV PL-S 11W/2P G23, SYLVANIA —, GE Lighting —. These germicidal ranges are interchangeable: same base, dimensions and output.

Technical specifications

Brand	OSRAM
Type	UV-C germicidal lamp (disinfection)
Base	G23
Power	11 W
Wavelength	253,7 nm (UV-C)
Ozone	Ozone-free (185 nm blocking glass)
Runs on ballast	Standard fluorescent ballast of same wattage
Useful life	≈9000 h
OSRAM equivalent	PURITEC HNS S 11 W — this product
PHILIPS equivalent	TUV PL-S 11W/2P G23
SYLVANIA equivalent	No equivalent in the range
GE Lighting equivalent	No equivalent in the range

Key benefits

✓253.7 nm germicidal radiation — neutralises bacteria, viruses and moulds

✓Ozone-free: special glass blocks the 185 nm line

✓Runs on a standard fluorescent ballast of the same wattage

✓≈9000 h useful life — yearly replacement recommended

Ideal for

Air purifiers and HVAC ductsUV clarifiers for aquariums and pondsWater treatment (drinking water, wells)Laboratories and food industryDisinfection cabinets and devices

Frequently asked questions

Can I handle the lamp with bare hands?

No: always handle it with a clean soft cloth (or the packaging film). Fingerprints leave grease on the quartz that blocks UV-C radiation and creates hot spots — germicidal efficacy and lamp life drop sharply. If you have touched it, clean it with alcohol before use.

Is UV-C radiation dangerous?

Yes: UV-C burns eyes and skin within seconds. Use this lamp ONLY inside a closed device (steriliser, clarifier, duct) and never look at the lit tube. Always switch off the power before any intervention.

When should it be replaced?

After about 9000 hours (≈1 year of continuous use). UV-C output fades over time: the lamp may still glow blue while its germicidal power has become insufficient. Replace it yearly to guarantee disinfection.

Which OSRAM, PHILIPS, SYLVANIA or GE references does it replace?

OSRAM PURITEC HNS S 11 W — this product, PHILIPS TUV PL-S 11W/2P G23, SYLVANIA — and GE Lighting —: identical G23 base and dimensions, direct replacement in the same device.