A: The lifespan of a specific LED bulb (or bulb type) will vary due to a lot of different factors. The average lifespan for most LEDs is about 25,000 hours, with high quality bulbs averaging closer to 50,000 hours. If you leave the lights on 12 hours a day, that would give you more than 11 years of operation from a high-quality bulb.
Since LED lights begin dimming as they wear out, rather than completely burning out, the “end” of an LED’s lifespan is defined as the point at which their light output has been reduced by 30%. The most common factor that affects LED lifespan, aside from the quality of the construction and materials used, is degradation due to heat.
Working with a lighting professional on a larger project can help you to choose not just the right manufacturer, but the right bulb design and fixture type to ensure optimal performance from your LED lighting for years to come.