Ask a designer or decorator about how to dramatically change the look of a room, and lighting is often the answer. And it’s true. The right amount of light can make tasks easier. Lighting can create a ...

As of Jan. 1 of this year, the 60-watt incandescent light bulb—that classic of the genre; the Edisonian ideal; the signifier that illuminates in your mind’s eye when you’re asked to picture “a light ...