UV lamp wavelength 365nm 420nm

Wed, 03 Jun 2026 05:12:17 +0800

Out on the floor, the scheduler is counting seconds. Changeover is slipping because lamp output drifted, the ink stays tacky, and the stacker is backing up. That’s exactly why wholesalers and traders keep specifying our CE-certified UV lamps: stable spectral output, repeatable cure, and uptime that survives real production. Here’s what matters under the hood: the photoinitiator match. Offset inks lean on short-wave absorption, so 365nm gives you the peak irradiance that drives fast cross-linking through the top layer without overheating the substrate. Flexo and screen builds often run thicker films, with photoinitiators tuned to longer wavelengths; 420nm penetrates deeper, curing the bulk without skinning the surface too early. Our lamps hold the specified spectral profile across the arc length, and the reflector geometry keeps the dose distribution even across the print width. So what does that translate to on the press? Consistent curing energy density from job to job, so dot gain and set-off stay under control. The lamps hold output over thousands of hours, which means fewer degradation-induced pinholes and adhesion failures to chase. CE compliance keeps audits straightforward, and the same core design fits multiple press platforms—offset, flexo, and screen—when you match wavelength to the ink chemistry. One practical heads-up: lamp performance is tied to the ballast and reflector condition. Install to the stated ignition voltage and confirm reflector alignment; if those are off, the focal line shifts and you can get stripe cure.Treat the lamp as part of a system, and you’ll get the repeatable cure the data sheet promises.

Wavelength on UV Curing Ray

UV lamp wavelength 365nm 420nm