Unless you live in an older home with two-prong outlets, you probably don’t put much thought into plugging and unplugging electronic devices and appliances. But at some point, you’ve likely noticed ...

John Carlsen has more than a decade of experience testing and reviewing home tech products, with a major focus on smart home security. He earned his BS in journalism from Utah Valley University. In ...

To get a better understanding of this subject, take a look at the AC plugs on some of your audio-video gear, new and old, and on some appliances in your home. You’ll notice that some may have a ...