Extend the life of LEDs through protective coatings

As the LED and solid-state lighting (SSL) sectors continue to thrive, product developers are deploying the technology into decidedly tough environments. We discussed the need for robust thermal designs in Part I of this article in April. Now let's discuss the need to protect LEDs and circuit assemblies in harsh environments such as marine applications. Coatings and other protection technologies can extend the life and performance of SSL systems. With the rapid growth of the LED market, correct product selection is imperative to ensure LED performance and lifetime. In Part I, we discussed the importance of proper thermal management, including the various ways to ensure maximum heat dissipation in LED systems. The effect of excessive heat generation was discussed in direct correlation to LED lifetime.