OSRAM HNS L 24W 2G11 – PURITEC UV-C lamp for disinfection of air, water and surfaces

OSRAM HNS L 24W 2G11 – PURITEC UV-C lamp for disinfection of air, water and surfaces

The OSRAM HNS L 24W 2G11 is a UV-C germicidal lamp from the PURITEC HNS family, designed for effective chemical-free disinfection of air, water, and surface systems. It emits its maximum radiation at 254 nm (the germicidal wavelength of mercury) and is ozone-free thanks to a special glass that blocks the wavelengths responsible for ozone generation. With a nominal power of 24 W , it operates at 87 V and 0.4 A , offering a typical lifespan of 9,000 hours . Its compact design with a 2G11 (4-pin) base, a length of 314.5 mm , and a diameter of 40 mm facilitates integration into new and replacement equipment. The typical UV-C radiation is approximately 7.3 W , making it suitable for disinfection chambers, AHUs/ducts, water systems, and surface equipment.

Main features

• UV-C at 254 nm : effective germicidal emission to inactivate bacteria, viruses and spores in air, water and surfaces.
• Ozone-free : special glass that suppresses ozone-generating wavelengths.
• Long service life : up to 9,000 h thanks to the specific coating of the tube.
• Low mercury content and instant ignition .
• 2G11 base and compact format ( 314.5 mm long, 40 mm in diameter) for easy replacement.
• Stable electrical parameters : 87 V , 0.4 A , 24 W.
• Burning position s180 (installation in any orientation within the plane specified by the luminaire manufacturer).

Product benefits

• Effective and environmentally friendly disinfection , without chemicals and without residue.
• Operating cost optimized by its long life and simple maintenance.
• Compatible with 2G11 24W socket equipment and standard electronic ballasts for compact lamps (see compatibility below).

Areas of application

• Air purification : AHU/ducts, upper-room units, recirculation.
• Water treatment : compact and residential/industrial systems (in closed chambers).
• Surface disinfection : UV-C tunnels/chambers, laboratories, conveyor belts and processing tables.

Compatibility and installation

• Socket: 2G11 (4 pins).
• Recommended auxiliary equipment: electronic ballast for 24 W 2G11 CFL, e.g. e.g. OSRAM/LEDVANCE QUICKTRONIC QT-ECO 1×18–24/220–240 S (non-dimmable).
• Not adjustable . Always use in enclosed housings designed for UV-C and made with radiation-resistant materials.

Frequently Asked Questions

• Does it emit ozone? No. It is ozone-free by design.
• What is its UV-C power? Typical UV-C radiation is ~7.3 W (reference from laboratories and technical distributors).
• Can it operate without a ballast? No. It requires a compatible electronic ballast for 24W/2G11.
• Is it safe to look at? UV-C radiation is dangerous for skin and eyes . Operate only in enclosed systems or with appropriate shielding and safety devices.

Usage and safety recommendations

• Avoid direct or reflected exposure; incorporate appropriate interlocks , signage and shielding .
• Check the camera material (anodized aluminum/STAINLESS STEEL/PTFE/UV-C glass) and the cleanliness of the surfaces to maintain irradiance.
• Schedule preventive maintenance : periodic cleaning and replacement around the end of useful life to preserve the UV-C level.

Project description

OSRAM HNS L 24W 2G11 germicidal lamp, UV-C 254 nm , 24 W , 87 V , 0.4 A , 2G11 base , length 314.5 mm , diameter 40 mm , life 9,000 h , position s180 , ozone-free ; typical UV-C radiation ≈7.3 W. Compatible with 1×24 W electronic ballast for 2G11 (e.g., QT-ECO 1×18–24/220–240 S ).