GFCI stands for “ground fault circuit interrupter” and are designed to protect people against deadly electric shock. Your GFCI outlet includes two buttons – a Test button (black) and a Reset button (red). Pushing the black test button will turn off the outlet and all other outlets within its circuit. The red Reset button turns the outlet (and all others included within the circuit) back on. These types of outlets should be installed in areas where water and electricity could come in contact such as bathrooms, unfinished basements, garages, and outdoor outlets.