Combination: 20A 125V self-test GFCI outlet and USB wall outlet GFCI Outlet: Auto self-test, with safe lock protecttion function, GFCI safety is improved. GFCI includes an End-of-Life monitoring function, it can not reset correctly when GFCI reaches the end of life USB Outlet: With Type A & Type-C USB ports, 5V 4.8A, dual USB ports shared 4.8A in total and single port can reach up to 4.8A individually LED Indicator: Red light means GFCI correct installation. After reset, the indicator (LED) will trun green light, which means the outlet is working properly. Flashing red light means GFCI has stopped functioning and must be replaced Installation: Wallplate included. Requires extra deep wallbox for installation, the GFCI USB outlet with 1.58 inch in depth