There's absolutely no reason they won't last if properly engineered. We have a very good understanding of how and why LEDs fail over time. If the lights need t

There's absolutely no reason they won't last if properly engineered. We have a very good understanding of how and why LEDs fail over time. If the lights need to last 10 years, then the mechanical & electrical engineers can make a design that will last 10 years. That's not hard to do. The reason many LEDs, especially consumer LEDs, fail early is due to excessive cost cutting.