If you’ve plugged in an extension cord, swapped out a light fixture, or made a piece of toast, you’ve likely used a UL-listed product. The small UL mark you see on labels or stamped on products ...

Atom Power, inventor of a digital circuit breaker, introduced the second generation of its technology. The Generation 2 Atom Switch is now UL Listed to UL 489I — the standard listing for solid-state ...

For many electricians, it is common practice to look for some form of UL marking on a piece of equipment before installing it. If they see one, they assume everything is okay and proceed with their ...