Confused between A19 and E26 light bulbs? Learn what these numbers mean, how are they different and similar, and how to pick ...

Once upon a time, buying a lightbulb meant choosing an incandescent one of between 25 and 100 watts, depending on how bright you wanted the light ... LED packages note the bulb’s CRI number ...

But when your supply of incandescents is gone, you'll probably be buying more energy-efficient and longer-lasting LEDs, or light-emitting diodes. LED ... by a bulb. The higher the number of ...

Follow her on Twitter. In the days of incandescent light bulbs, you could determine the bulb's brightness by the number of watts printed on the package. With today's LED bulbs, brightness is ...