The answer to 'lifespan of GFCI outlet' is that a properly installed and maintained GFCI (ground fault circuit interrupter) outlet can typically last 10-15 years or more. GFCIs are designed to detect ground faults and automatically shut off power to prevent electric shock, and they are required in areas with high moisture like bathrooms, kitchens, and outdoors.
Over time, the internal components of a GFCI outlet can wear out, and it's important to test them monthly to ensure they are still functioning properly. Factors like the environment, usage, and quality of the outlet can affect its lifespan. Replacing a GFCI every 10-15 years or if it fails the monthly test is recommended to maintain safety in the home.