The answer to 'lifespan of surge protector' is that a typical surge protector has a lifespan of 3-5 years with normal use. Surge protectors are designed to absorb and dissipate electrical surges, and over time the components within the protector will wear out and lose their ability to provide effective protection. Factors like the number and severity of power surges the protector experiences, as well as environmental conditions like heat and humidity, can impact the lifespan.
It's important to replace your surge protector every few years, as an old or worn-out protector may no longer be effective at shielding your valuable electronics from power spikes and surges. Look for signs your surge protector is failing, like indicator lights going out or the protector no longer feeling warm to the touch when in use.