GFCI receptacle with professional grade lockout action True Dead-Face design with LED indicator for line-load reversal If miswired during installation with line-load reversal, it cannot be reset, blocking delivery of power to feed-through terminals and face End-of-Life indication patented lockout action prevents reset if device is damaged and cannot respond properly to a ground fault Reduces the possibility of end-users incorrectly assuming reset GFCI is providing protection when it actually is not Back and side wired with nine back-wire holes including two for each line and load connection plus one for ground with an internal clamp LED status indicator Test and reset buttons match face color UL listed, CSA certified, and NOM certified Limited 2 year warranty