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 ...

The Government announced in June that halogen bulbs will no longer be available to buy in Britain. But the move was originally due to take place on September 1. The delay was to ensure the “new ...