How to find an LED lightbulb that fits your fixture

The LED lightbulb display at the home center wasn’t helpful and the clerk who worked in that section was down on LEDs—too much money, he said—and didn’t seem to know a lot about them. Can’t blame him. LEDs, with their semi-conductor chips and electronic circuitry, are a lot more complicated than the lightbulbs we grew up with. But LEDs are really impressive if you buy the right ones, as Consumer Reports discovered in its lightbulb tests. LEDs are better than CFLs (compact fluorescent lamps) and use about 80 to 85 percent less energy than the incandescents they replace.