COB LED Strip Lifespan: What to Expect After 5 Years
- 2026-09-22 11:52
- /
- Arraystar LED
Properly installed in aluminum channel at 70C, COB strips retain 90% brightness after 5 years. Bare on wood at 90C, they drop to 60%.
What Lumen Maintenance Actually Means
The 50,000 hour rating means L70 life: brightness drops to 70% of original. That assumes ideal heat sinking and correct driver. In the real world, installation quality is everything.
| Failure Cause | Typical Life | Fix |
|---|---|---|
| Bare on wood | 1-2 years | Use aluminum channel |
| Undersized driver | 2-3 years | 120% derating |
| High ambient temp | 3 years | Ventilate |
| Voltage too high | 1-2 years | Use 24V |
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Frequently Asked Questions
How long do COB strips really last?
50,000 hours if properly installed in a channel. Bare on wood, 15,000-20,000 hours.
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