How to choose UV germicidal lamp

Tue, 23 Jun 2026 06:07:48 +0800

When the imported UV lamp on your press finally dies and the OEM quotes a month for a replacement, you’re not just waiting on a part—you’re watching sheets you can’t run. We build a drop-in replacement in seven days, spec’d to your machine’s arc length, base, and electrical requirements. Downtime isn’t measured in calendar dates; it’s counted in lost production.

What actually matters on the technical side

UV germicidal performance comes down to spectral output and the delivered dose. For disinfection, the dominant 254nm line from a low-pressure mercury vapor source is the workhorse—DNA absorbs right there, and that’s where the kill happens. Medium-pressure lamps broaden the spectrum, which helps when you need surface and air disinfection across a wider mix of organisms. Check output with a calibrated radiometer: peak irradiance (mW/cm²) at the working distance, and dose (mJ/cm²) over the exposure time. Match lamp power to your chamber geometry and airflow, or you’ll chase hot and cold spots all day. A solid quartz sleeve and stable electrodes keep output steady. We’ve run units for 5,000+ hours with less than 5% output drop, and reflectors with dichroic coatings that hold their geometry keep uniformity where it needs to be.

Choose on UV Curing System

How to choose UV germicidal lamp

What actually matters on the technical side