Before agreeing to replace Newtown Township’s streetlights with LED fixtures, officials did the math and it added up: spend $720,000, but save $43,679 annually so that in 20 years there will be a ...

Engineers from Seoul National University and other labs are quietly redrawing what household lighting could look like, replacing today’s bulbs with thin films made from crystalline perovskites. Early ...

LED lights are a popular choice for homes and businesses alike, thanks to their energy efficiency, long lifespan and sleek design. But with their growing use comes an important question about safety, ...