The allure of LED lights is that they last for tens of thousands of hours.

If yours are burning out prematurely, here are some of the likely reasons why.

Unlike their incandescent cousins,LED bulbs don’t actually burn out.

Person holding a Philips Hue bulb

Hannah Stryker / How-To Geek

LED bulbs tend to fade away, slowly growing dimmer over tens of thousands of hours of operation.

Let’s look at the factors that can contribute to premature LED bulb failure.

After over a century, the technology of basic incandescent bulbs is pretty well dialed in.

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Further, the design is extremely elementary.

LEDs are a different story.

That’s much more complex than the basic filament-glows-hot design of incandescent bulbs.

Related:Have Recessed Lights?

The real LED killer in most homes isrecessed lighting fixtures(also called can or pot lights).

One notable exception to that pattern areCree’s “4Flow” bulbs.

Sometimes it can be as simple as the contact tab inside a lamp socket is bent.

LED bulbs are particularly sensitive to out-of-spec voltage.

If they fail prematurely, especially within days, that can indicate overvoltage in your home.