They've had a good long run, 134 years, but come January most screw-in incandescent lightbulbs will have been phased out because they use too much energy. There's no need to hoard bulbs.

The co-founder of collapsed energy firm Bulb has apologised for the supplier’s failure and said his new electricity storage ...

CFLs use about 75 percent less energy and last up to 10 times longer than incandescent bulbs. This can save you up to $35 in electric costs over the lifetime of each bulb. Switching to CFLs in the ...

Efficiency is the comparison of the amount of light (lumens) produced by a given amount of electrical energy (watts). The more the lumens per watt the more efficient the bulb. The averaged ...

I wanted to find out what really sets LED lighting apart from traditional bulbs - and as it turns out, there's a lot more to it than just energy savings.

It’s an easy and very visual way to conceptualize how much energy is being pumped out ... So he took 100 of these little neon bulbs and arranged them in a 10×10 grid on a piece of perfboard.

Much of the energy that halogens produce is converted ... HIDs they put less of a strain on the motorcycle’s electrical system. LED bulbs can last up to 25,000 hours and can handle shocks ...