Curious about the T-shaped hole in some electrical outlets? Learn what it means, what plugs it supports, and why it's used in ...

You find yourself in an airport or hotel room in another country, and you really need to charge your phone, camera or game system. But what is that strange-looking outlet? It has round holes! And ...

Electrical plugs and outlets come in many different shapes and sizes. Why do the holes in electrical outlets have such ...

Metal prongs on a type-A electrical plug. - JACKREZNOR/Shutterstock Most gadgets and small appliances in U.S. homes have either a Type A or Type B electrical plug, perhaps with a cover to hide cords.

You know the struggle: You go to plug something in, but the orientation's wrong. The prongs are different sizes, so you turn it the other way and try again. Still wrong. You finally get it, third time ...

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 ...

If your special interest is outlet types and power adapters, then boy do we have the online archive for you. Lovingly created by a designer who was frustrated with boring SEO-optimised websites whilst ...