GFCI Outlet - Constructed with premium high-impact resistant thermoplastic materials and rational structure design, ensures superior strength and durability. it a single gang GFCI electrical box that supports a standard duplex, grounded receptacle; Safe electrical GFCI outlet tester with TEST and RESET buttons and LED Indicator is designed to meet local and national electrical codes. Weather Resistant - Constructed with advanced UV stabilized engineering to provide superior corrosion, temperature, and UV resistance, preventing discoloration and aging, ideal for outdoor & indoor use. Ground fault circuit interrupter GFCI outlets are required in kitchens and bathrooms and within 25 feet of heating, air conditioning and refrigeration equipment to prevent electrical shock in areas subject to moisture. Self Test - Two Indicator Light provides simple, intuitive feedback on power and protection status. If the indicator (LED) glows green, you have installed the GFCI receptacle correctly