When you flip a switch or power up your smartphone, the last thing on your mind is whether that light could be messing with ...

You might have come across articles saying that the LED light bulb emits blue light which causes a myriad of harmful effects including damage to the retina, macular degeneration and disturbed sleep ...

In the United States and Canada, there have been many reports of LED street lights that were initially white but have suddenly turned purple. The reason for this change in color of LED street lights ...