Modern LED headlights help drivers avoid danger by lighting up more of the road but glare from blazing bright LED lights can blind oncoming traffic.

LED is the technology choice in such battery-powered portable devices as mobile phones and PDAs thanks to its high luminous efficiency, durability, and small size. Low power white LEDs of ...

Growing up, I remember on the back wall of an auto mechanic’s shop were two side-by-side targets of a specific size [“Bright headlights a safety problem for drivers,” News, Dec. 11]. During car ...