This light switch is the perfect device to enjoy the freedom of controlling your light switches. Control when to turn on and off your lights directly from your smartphone. Enjoy the convenience of turning on your lights from virtually anywhere in the world. Want to turn on the entryway light of your house before you get home? Just open up the smartphone app, and turn on the light before arriving home. You can program as many devices as you want and group them together within the application to power on all at once.