Not all outlet holes are the same, and there's a reason for that. The shapes (vertical slots, round holes, T-slots, etc.) correspond to specific electrical functions and safety features. Take the ...

It can be really frustrating when you're hooking up an appliance or gadget with a three-prong plug only to realize the extension cord or outlet you're plugging it into only has two prongs. After all, ...

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 ...