This wall tap is designed to plug in multiple devices in one location, providing overcurrent and short-circuit protection for all four USB ports. With a total of 4.8-amps distributed among the available ports, it is perfect for keeping tablets, smart phones and other rechargeable electronics ready to use. A built-in nightlight with photosensor and touch dimmer automatically turns on after dark to provide dusk-to-dawn illumination. This low-profile power multiplier is easy to install and fits into tight spaces. ideal for home and office applications.