Let's start with smart light bulbs. The light bulb is the oldest, the simplest and the most revolutionary electrical appliance ever invented. Plug it in, turn it on: let there be light.

Bulbs that take 0 to 15 seconds to reach near ... The Sylvania Ultra-LED 100W LED20A21/DIM/0/827 is part of the Lightbulbs test program at Consumer Reports. In our lab tests, Lightbulbs models ...