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By certification 
Background for developing this USB outlet:
In the market, most supplier offered USB charging outlet is normally the car charger, or the cellphone charger. But ours is in wall type, to put the 2 USB charging Port into the wall receptacle. In US, some customers called it upgraded Receptacle.
Do you have experience that
1. You forget the take the phone charger when traveling?
2. Do you feel anxious that your phone noted you "low battery" when sitting at the station?
3. When you got the USB fan, USB desktop lamp, you need to find another charging head to get power.
Normally, People often remembered take charging cord, but no charger, that's why this USB outlet developed, and widely applied to hotel, station, airport, restaurant and even homes etc.
This USB in-Wall Charger Outlet is with 5v 4.2A Output for fast charging (Compared with 5V 1A USB receptacle). For the USB fan or USB lamp, it need large instantaneous current when they start, that's why this product is designed for either one of the USB Charging port can reach 5V 4.2A.
Features
* This USB wall socket is the first Gen edition.When it released, it's perfect to use in residential applications such as kitchens, bedrooms and home offices and in commercial applications such as hotels, airports, restaurants and cafes, salons, office cubicles and college dorm rooms.
* Smart chip recognizes and optimizes the charging requirements of individual devices
* USB Ports are positioned vertically providing more space for maneuvering and reducing stress on USB cables
* Compatible with USB 2.0 devices, like USB fans, USB camera, USB lamps etc.
* Fits in a standard wall-box, is compatible with standard wall plates and can be multi-ganged with other devices
* Easy to install. You can directly replace existing outlets
Technical Information
• Amperage: 15 Amp
• USB output: 5V 4.2A Max
• Grounding: Standard Grounding
• Ratings: 15A
• Receptacle Voltage: 125V AC
• Flammability: Rated V-0 per UL94
• Operating Temperature: -10C to 40C
• Body Material: Thermoplastic
• Color: White
• Cover Material: Thermoplastic
• Strap Material: Steel
• Terminal Accom.: 14-10 AWG
• Terminal ID: Brass-Hot Black-Hot White-Neutral Green-Gnd
• Termination: Back & Side
• Torque Range: 12-14 pounds
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