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As inkjet printing technologies continue to advance, UV LED curing lamps have emerged as indispensable components in modern production workflows. By instantly solidifying UV-curable inks and coatings, these lamps accelerate print speeds, improve image sharpness, and enhance overall product durability. However, to achieve consistently high-quality results and maintain process efficiency, it is essential to regularly measure and verify the UV output of these lamps. In this article, we explore the fundamental principles behind UV LED curing, outline why routine intensity checks are crucial, examine the key factors that influence UV output, and describe the tools and best practices for maintaining optimal curing conditions. 1. Overview of UV LED Curing in Inkjet Printing 1.1 What Is UV LED Curing?UV LED curing harnesses ultraviolet light emitted by specialized light-emitting diodes (LEDs) to trigger rapid photochemical reactions within UV-sensitive inks and coatings. These formulations contain photoinitiators that absorb UV-A wavelengths (commonly in the 365 nm, 385 nm, 395 nm, or 405 nm bands) and generate free radicals upon exposure. The free radicals, in turn, initiate polymerization and crosslinking, transforming liquid-based ink into a solid, fully cured film in a matter of milliseconds or seconds. 1.2 Why Inkjet Printing Relies on UV LED TechnologyIn ...