incandescents

Although they use just a quarter of the energy of incandescents, consumers have been slow to adapt them.

It's also more conical than traditional incandescents, but what's most striking about the Philips bulb is that it has no bulb.

To have a useful life, even the hottest quartz-halogen incandescents have to operate well below the filament's melting point.

The senior official added that incandescents of 15 watts or higher would be banned from 2016 if the scheme was a success.

Experts predict that the shift in demand will also cut the cost of CFLs and increase the cost of incandescents globally.

While incandescents generate heat to produce light, LEDs create it from the movements of electrons on silicon chips.

Incandescents are also incredibly inefficient, using only 10 percent of their consumed electricity to emit light.

Still, there is no denying that, on most other counts, CFLs are a far better choice than incandescents.

The total yearly amount of CO2 produced by a household with incandescents is a whopping 4. 825 tons.

Light quality was best in test, with the classic softness that has made it so hard for us to quit incandescents.

Some bulb makers worry about keeping up with demand for fluorescents if incandescents are phased out quickly.

Turn off incandescents if you're leaving the room for more than five seconds; CFLs, if you'll be gone at least 15 minutes.

It is unclear whether China will totally phase out production of incandescents.

Dome-shaped CFLs, similar in look to conventional incandescents, are a better fit for lamps whose shades clip onto the bulb.

Despite the higher price tag, it sells 137 million CFLs, which use 75% less energy than incandescents.

A good number for incandescents is around 18, CFLs around 60, and LEDs around 54.