To make these numbers meaningful, you need to work out how long your lights are on per year.
For example, let’s imagine a warehouse with racking which opens at 08:00 and closes at 17:00 each day. The warehouse is operational 5 days a week, and 50 weeks per year. That equates to 2,250 hours per year.
If you install LED lighting to illuminate the aisles between the racking and the LED lights have a life-time of 50,000 hours each, then each light is predicted to last 22.2 years. This number is reached by dividing 50,000 by 2,250.
If, on the other hand, the warehouse was operational 24 hours a day (instead of 8 hours), the LED lights would be on 6,000 hours a year. This would bring the predicted life-span of the LEDs down to 8.3 years (50,000 divided by 6,000).
The fact LED luminaires last so long is one of their many advantages.
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