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where did you come up with 25,000? The article says the LEDs were supposed to last at least a decade, which is the length of the warranty.
by melling 8y ago
where did you come up with 25,000? The article says the LEDs were supposed to last at least a decade, which is the length of the warranty.
- jedberg 8y agoThat's just the average rated life of an LED street lamp. But if you do that math, that's about 5.7 years at an average of 12 hours a day. So these lamps were probably rated closer to 50,000 hours. You can also get sodium lamps that last that long. It's just an average.
- melling 8y agoDo you give a warranty on the average? I doubt it. A 10 year warranty probably means the average is longer than 10 years.
- Itsdijital 8y agoMind you LED life span is usually rated to ~75% brightness instead of complete failure like other bulbs.