?20AMP GFCI OUTLET?The Receptacles continuously protect ground fault; prevent personal injury and risks of electrical fire caused by ground fault; a must have for household electricity ?TAMPER RESISTANT WEATHER RESISTANT?Tamper proof preventing accidental insertion of objects, or mistakenly touch of children; Weather Resistant perfect for humid or outdoor environment like bathroom, balcony, kitchen ?SELF-TEST FUNCTION?The GFCI outlets meet the UL standard for auto monitoring, self testing in every 40Secs to ensure GFCI protection working properly; when detect ground fault, the outlet will trip and quickly stop electricity flow to prevent serious injury ?LED INDICATOR LIGHTS? Includes an end-of-life monitoring function,when outlet can not provide ground fault protection,the red light will turn on, the GFCI must be replaced; Green light shows outlet is working properly ?EASY INSTALLATION?The screws has already loosen up to get the wire loops around the screws, install it within few minutes with the instructions; decor wall plate included, modern look can decorate your home well