Ground Fault Circuit Interrupter (GFCI) receptacle is designed to recognize a ground fault in your wiring and immediately break the flow of electricity, thus protecting you from electrical shock. LED Indicator will always be on, no matter it trips or works properly, indicating the on-going protection. Once it turns off, it means power source (circuit breaker) breaks off or GFI is malfunctioning. Contact customer service for a replacement. Easy Installation with back or side wiring. Standard wall plates, screws and installation instructions included. 20A/125V ETL certified, 3-year limited warranty. What you will get ? 1 x White GFCI Outlet 1 x Standard-Size Screwless Wall Plate 2 x Receptacle Mounting Screw 2 x Color-Matched Outlet Cover Screws 1 x Installation Guide.