Squinting at screens is tough on the eyes, and the blue light emitted by our mobile devices can disrupt sleep. C by GE is a pair of smart LEDs, called C Sleep and C Life, that change brightness to suit the time of day and mimic more subtle hues of natural light, to help our bodies adjust back to more organic rhythms and produce melatonin more effectively. They won’t help wean you off your phone, but these Bluetooth-connected, app-powered bulbs will help ensure that the time you spend awake—and asleep—is healthy and productive.