Researchers have used zinc oxide microwires to significantly improve the efficiency at which gallium nitride light-emitting diodes (LED) convert electricity to ultraviolet light. The devices are ...

Scientists are reporting a major improvement in their potential new treatment for facial wrinkles that could emerge as an alternative to Botox and cosmetic surgery. The noninvasive technique combines ...

The Department of Energy recently announced that it will enforce new rules that prohibit the manufacture and sale of certain types of incandescent and halogen lightbulbs used in homes. Stores can ...

While the Philips Ambilight 7900 Series 55-inch LED TV might seem entirely normal at first, it has a neat party trick hidden behind — three-sided Ambilight LED lights to enhance the viewing experience ...

LED lightbulbs have slashed the amount of energy we use to light our homes. New data illustrate just how much. Jon covers artificial intelligence. He previously led CNET's home energy and utilities ...

If you had an array of high power addressable LEDs, how would you project them onto a wall? Perhaps you’d use a Fresnel lens, or maybe an individual lens on the top of each. [Joo] faced this problem ...

Artificial light at night can have a disruptive effect on bats, but not if the light is red. Switching to red light may therefore limit or prevent habitat loss for rare, light-shy bat species. The ...