The 60 and 40 watt incandescent watt light bulbs will no longer be made after January 1st, 2014, and will be replaced with LED, halogen, and compact fluorescent light bulbs.

The iconic incandescent light bulb is not dead yet but could well fade away slowly. Remember the frenzy surrounding the announcement that the most commonly used light bulbs in the country, the 40- and ...

With 350 lumens, they use only 5 watts of energy but give off a brightness equivalent to that of a 40-watt incandescent bulb.

But starting Jan. 1, those traditional incandescent light bulbs will disappear from stores in California as part of a national initiative to switch over to more energy-efficient light bulbs.

It's been nearly two years since U.S. manufacturers stopped making conventional 40- and 60-watt incandescent lightbulbs. While you can still find a few on store shelves, the familiar incandescent ...

Once you figure out the conversion, picking the right bulb is easy. A 40-watt incandescent would equal 450 lumens. A 60-watt bulb would equal 800 lumens. A 75-watt bulb would equal 1,100 lumens.

But the research team thinks they can improve their method to build an incandescent bulb with 40 percent efficiency (272 lumens per watt), which would make it the most efficient lightbulb on the ...

Many manufacturers use a unit of light called the lumen. Here’s what you need to know about lumens. A 450-lumen bulb gives off about the same light as a 40-watt incandescent bulb.

Over the past 18 months, I have been home-testing LED light bulbs that are intended to replace the residential lighting that we all knew and loved — the 60-, 75- and 100-watt incandescent bulbs ...