The surge protectors extend the life and protect your appliances by absorbing the potential damages caused by voltage fluctuations. The UL-certified Qualcomm® Quick Charge™ 3.0 USB port delivers lightning-fast charging in compatible devices, refilling the battery of enabled devices up to 4X1 faster than with conventional charging! Qualcomm® Quick Charge™ 3.0 Technology  Built-in Qualcomm® Quick Charge™ 3.0 technology to deliver lightning-fast charging up to 4 times faster than conventional charging. Adaptive USB Charging Technology  Automatically adjust the output current required by your gadgets, providing fast and convenient charging. Surge Protection up to 1000 J  Protection circuit protects your connected appliances from electrical surges caused by inrush current and lightning. Full Brass Connection  Provides outstanding conductivity and minimizes short circuit risk. Child Safety Shutter  Automatic shutters prevent children from putting fingers or sharp objects into the socket.<br><br><img src="http://gdetail.image-gmkt.com/222/619/771619222/2017/5/18165e74-055c-4230-b318-80e36b1cfae2.JPG">