On the screen-print floor, “instant dry” isn’t a tagline—it’s the line speed you have to hold. If the UV lamp doesn’t come up to full spectral output in seconds, the chain stops. Ink smears, rejects stack up, and the curing unit becomes the bottleneck. The replacement UV lamp for Heraeus systems is built for that reality, giving you the fast response and steady irradiance needed to keep production running. What matters technically This mercury vapor lamp is centered on a 365nm peak wavelength, matched to the absorption profile of the standard UV photoinitiators in screen inks. Keep spectral output stable, and cross-linking stays repeatable, run after run. Peak irradiance holds across the curing window, and the lamp delivers consistent power density—measured at the substrate plane—so you get surface cure and cure depth at the same time. The reflector uses a dichroic coating to push more usable UV onto the substrate while cutting IR load. Why it works in screen Screen printing needs a fast, complete cure without slowing the press. This lamp hits operating intensity quickly, so curing happens the moment the substrate passes under the beam. You end up with higher throughput, fewer stops to check for tack-free cure, and consistent ink adhesion and cure hardness. Energy use stays under control thanks to reflector efficiency and stable lamp operation, and the design supports long service intervals, which means fewer unplanned lamp changes. Here’s what to watch for Installation has to match the Heraeus fixture—lamp length, arc gap, terminal orientation, and reflector geometry. Verify power density and spectral match against your ink chemistry and substrate. Keep wall temperature within spec and run the correct cooling airflow; overheating shortens lamp life and shifts output. Expect a warm-up period before output stabilizes—plan your startup to line up with job changeovers.