The HH-LED+, a new hand-held LED curing system from DYMAX, uses LEDs (light emitting diodes) to generate both UV and visible light (375-415 nm) to provide cool, consistent, low-cost UV spot curing. According to the company, operating the technology costs 75 to 85% less than operating higher-intensity UV spot lamps and there are no expensive bulbs to replace. The system does not emit IR or other unused wavelengths, and therefore provides much cooler UV cures than traditional spot lamps. More consistent cures are possible since there is virtually no reduction in intensity for over 5,000 hours. Instant on/off and an integral timer features reportedly make the unit a very economical and process friendly UV curing system.

The system offers more than 350 mW/cm2 of curing power for more than 5,000 hours of actual use. A 12 mm lightguide covers a larger curing area than many other spot lamps (typical lightguide diameters range from 3 to 8 mm). The system is especially useful for spot curing adhesives in smaller bonding, tacking, and ruggedizing applications.

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