Sunco Lighting 4 PACK - UL Listed- High Speed USB Port Charger and Duplex Receptacle 15-Amp, 3.1A Charging Capability, Tamper Resistant Outlet- Wall-plate Included Top Rated USB Outlet (Plate / Screws Included) The UL certification stamp is a sign of the rigorous testing process undergone to obtain approval, which makes this the safest outlet for your home. Replace in-wall electrical outlets using either back or side connections that work with existing wiring for easy installation. Best used with 14 guage wire. Built in tamper resistance ensures safety by preventing the entry of foreign objects. APPLICATIONS - Charge Tablet, Smart Phone, iPads, iPhone, Samsung, HTC, Windows Devices and more... Installs in Home, Office, Salon, Spa, Cubicle, Coffee House, Restaurant, Bedroom, Bathroom, Kitchen, Airport Lounge, Hotel, Meeting Room, College Dorm, and more Smart Chip enabled USB ports allow record breaking charge speed so you can spend less time powering your devices and more time using them. Enjoy Ultra High Speed Power Charging to two USB devices at the same time without an adapter.