I wanted to program the lights in my house with an Echo device and be able to turn the lights on and off from anywhere since I leave my dogs alone, it often gets dark before I go home come and I need to turn on their lights and/or television to keep them company. Those tricks! It's that simple - I'm grandma, I read the instructions, downloaded the app and it all worked in about 15 minutes. You will receive a set of 4 single or double plugs - as I use all the lights on the tables and the TV which plugs into the wall I need this. I can be 100 miles away and turn on the table lamp and kitchen light for my dogs , when it gets dark from my phone and when I go to bed, I just tell Alexa to turn off the lights.