Spectral output of gallium UV lamp

Wed, 03 Jun 2026 05:42:26 +0800

On the press, inconsistent cure isn’t just a quality issue—it shuts the job down. When the ink layer doesn’t cross-link, you get tack, scuffing, and a stack of rejects. We built our gallium-doped UV lamp to deliver repeatable spectral output, so the photoinitiator in your ink gets the exact photon energy it needs, shift after shift. What matters under the hood Gallium UV lamps push the dominant output toward 365nm and cut down the shorter wavelengths that dump excess heat and make ozone. That matters because a lot of pigmented inks and thick-film formulations cure most efficiently at 365nm. We call out peak irradiance at the arc length—not some marketing number—and we hold spectral consistency along the lamp length within tight tolerances. The payoff is predictable curing energy density (mJ/cm²) on the substrate, not just a big lamp number that never gets to the print. In a printing operation, you need a stable cure at higher speeds without scorching the top layer. Our lamp holds low spectral drift over its life, so the same cure window applies from startup through 5,000+ hours. You see fewer hot spots, lower substrate heat load, and consistent cross-linking across solids, screens, and fine detail. That means more uptime, less rework, and lower energy per cured meter. A couple of realities to keep in mind. Gallium lamps are fussy about the reflector and the dichroic coating match. To get full spectral performance, the reflector has to be tuned to 365nm, and the system has to deliver stable ballast current—otherwise peak irradiance drifts. Also, because the output is concentrated in a narrow band, make sure your ink chemistry is optimized for 365nm photoinitiators. When everything lines up, the curing runs repeatable—exactly as intended, shift after shift.

Output on UV Curing Emitter

Spectral output of gallium UV lamp