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What will happen if a family went no maintainence rule for their lights for 5 years?

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  • Latest Post Latest Post by rproffitt

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Short answer for : modern LED lamps tolerate long stretches without hands-on care, but five years of zero maintenance usually brings gradual dimming and a few failures rather than a sudden household-wide blackout.

LEDs age differently than incandescents. Light output slowly falls (manufacturers rate life by when output reaches a percent of original, e.g., L70), and the most common failures come from the driver electronics and from excess heat. Conditions that accelerate aging are poor ventilation or enclosed fixtures, moisture for outdoor fittings, repeated power surges, and heavy dust/insect buildup that blocks lenses or impedes cooling. Typical symptoms after long neglect are reduced brightness, color shift, intermittent flicker, buzzing from the driver, or an eventual dark unit.

Practical, low-effort checks to limit surprises:

  • Annual visual inspection for clouded lenses, insect nests, corrosion, or blackening; signs of water entry on outdoor fixtures.
  • When servicing, power should be turned off at the switch or breaker and fixtures allowed to cool. Use a soft cloth or canned air to remove dust; avoid solvents on optical lenses.
  • Note persistent flicker, tint change, or buzzing — these usually point to driver degradation and justify replacement.
  • For replacements, pick lamps rated for the fixture environment (enclosed, wet-rated outdoor, dimmer-compatible) and consider basic surge protection for critical circuits.
  • Keep a few trusted-brand spares on hand rather than running unknown cheap replacements.

Anecdotes from members such as align with this: many LEDs last years with little attention, but a no-maintenance approach increases the chance of dimming or isolated failures, especially in harsh locations.

Member Avatar for rproffitt

I'm in year eight since I changed my second home to LED. I have one failure out of 50ish lamps. About all I do is the usual dusting and remove cobwebs when we see them.

Does that help?

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