I tested 10 different SAD light therapy lamps. These three models impressed me the most with their mix of performance, ...

Fleeting electron-hole pairs are giving scientists a new window into optimizing light-emitting devices (LEDs). Using quantum magnetic resonance, Osaka Metropolitan University researchers have ...

Celebrity-backed devices promise meditative ‘sober trips’. Researchers are studying how rhythmic light reshapes visual experience and mood.

Smart plugs can help track energy use, but they also consume some power themselves. Knowing the standby draw helps you plan ...

Electronic ballasts used in fluorescent lighting systems can experience high failure rates, due to the fact that the ballast manufacturer may not have considered all failure mechanisms or provided ...