Light bulbs have changed a lot in the past 20 years, and many states are now banning CFL varieties from being sold. Here's ...

The act prohibits sales of most fluorescent bulbs, joining nine other states in the transition to energy-efficient LED ...

Fluorescent lighting was once highly sought-after, but we know now that the risks outweigh the benefits, which is why one ...

Dermatologists explain the science behind wildly popular treatments like red light therapy, which is now available at home—for a steep price. Full-face LED masks like this one can cost up to several ...

Abstract: Three different methods to determine accurately the intensity of weak light pulses measured with various photomultiplier tubes are presented. The methods rely on a precise determination of ...