SmartLock GFCI (ground fault circuit interrupter) duplex receptacle with nylon wallplate, black and red buttons, and indicator light. Can be wired to protect all receptacles downstream on the same circuit. Terminal screw wiring can be back and side wired. Compact design with rounded corners fits easily in all surface or flush boxes, only 1-1/8" deep. Impact-resistant thermoplastic cover and body. Silver alloy terminal contacts. Complies with UL (Underwriter's Laboratories) 2006 GFCI requirements, UL Standard 943 Class A (GFCI), and UL Standard 498 (receptacles). 15A/125V. NEMA 5-15R.