Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. LED bulbs, by all indication, herald the future of home lighting ...

To be more energy efficient, many people have replaced their incandescent lights with light-emitting diode (LED) bulbs. However, those currently on the market emit a lot of blue light, which has been ...

Researchers have designed and tested ‘human-centric’ LEDs that emit different wavelengths of blue light depending on whether it’s daytime or nighttime, reducing the disruptive effect artificial light ...

If you're driving at night, there's an interesting phenomenon that's had people wondering whether there's any significance behind those purple street lights.