Allegheny ratepayers paid for the bulbs through a mandatory 96 cent monthly surcharge on their bills. Other utilities, including Baltimore Gas and Electric Co., are also tacking a small surcharge ...

LED bulbs are more efficient than older incandescent or fluorescent bulbs, and can save you significant money. But why do they sometimes glow when turned off?

LED light bulb are known for their long lifespan, but if yours aren't lasting as long, there are a few possible causes for their premature dimming.

Instead of simply replacing the outdated bulb, we decided to build a small dark detecting circuit with 2 yellow LEDs based on this Evil Mad Scientist Laboratories design.

If your Christmas lights aren't working, you may have tripped a circuit breaker. Or, try changing the fuse and checking for broken or missing bulbs.

In this setup, if one bulb burns out in the strand, the current won't flow through the entire circuit, which means the entire string of Christmas lights will go out.

The Simplest Electric Circuit Perhaps the best example of an electric circuit—so that you can see everything—is a single battery and a small incandescent light bulb.

If a bulb’s filament breaks, the shunt redirects current through the base of the bulb, maintaining the electrical circuit.

Almost a month ago I started trying to reverse engineer an inexpensive LED color changing light bulb. With your help I’ve mapped out the circuit, and taken control of the bulb. But there&#821… ...

The University of California system has resolved a lawsuit accusing Walmart of infringing its patents related to energy-efficient LED light bulbs, one of several lawsuits it filed against U.S ...

HGM of the duodenal bulb usually appears as small nodules or plaque-like elevations of variable size, generally forming clusters in the proximal part of the duodenal bulb.

Are the standard strand of Christmas lights connected in series or parallel? What's the difference between series and parallel anyway?