Light bulbs have changed a lot in the past 20 years, and many states are now banning CFL varieties from being sold. Here's what you need to know as a homeowner.

I’ve also treated the topic of LED illumination more conceptually; take, for example, this piece from more than seven years ago that analyzed LED and CFL light bulbs as potential successors to ...

LED or filament, three-way bulbs have a special base. While a normal Edison-base bulb has the threaded part as the neutral and a center contact for the live wire, a three-way bulb has an extra hot ...

Ask a designer or electrician about LED lightbulbs, and prepare to get a longer answer than you expected. In the last decade, LEDs bulbs — which contain an array of light-emitting diodes (a type of ...