The answer to 'lifespan of surge protector' is that most surge protectors have a lifespan of 3-5 years with average household use. Surge protectors are designed to absorb and dissipate excess electrical current during power surges, which can degrade the internal components over time. The lifespan can vary depending on the quality of the surge protector and the number and severity of power surges it experiences.
It's important to inspect your surge protector periodically and replace it if it appears damaged or no longer providing adequate protection. Signs that it may be time to replace your surge protector include damaged or discolored outlets, a lack of indicator lights, or a failure to protect your devices during power surges.