What is the average life expectancy of an exterior light fixture?
Sunday, May 24, 2020
You can expect an exterior light fixture to last 25 to 45 years, with an average of 35 years. This applies only to fixtures that are rated by the by the manufacturer for exterior installation. A light fixture that is intended for interior use may look handsome outside, but the components are not designed to stand up to rain, or even just the damp environment of a covered location like a porch. Check label on fixture for “DRY LOCATIONS ONLY.” See our blog post What is the difference between a UL rating for dry, damp, and wet locations? for more on this.
A light fixture is referred to in the building codes as a “luminaire,” and can go bad due to corrosion, obsolescence, a short circuit that fries the wiring, a windstorm, or accidental impact. Many get replaced before the end of their functional life, as part of updating a home to match current styles.
Here’s a graph comparing the life expectancy of an exterior light fixture to other electrical components in a home.
Go to our blog post What is the average lifespan of the parts of a house? for rating of other house components. To understand the basis, potential use, and limitations of lifespan ratings, see our blog post How accurate are the average life expectancy ratings of home components? Are they actually useful?
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Here’s links to a collection of some of our other blog posts about LIGHTING:
NOTE: These life expectancies are based on data provided by InterNACHI, NAHB, FannieMae, and our own professional experience. Because of the numerous variables that can affect a lifespan, they should be used as rough guidelines only, and not relied upon as a warranty or guarantee of future performance.
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