Newport News replacing LED lamps in traffic signals

Drivers in Newport News have said for at least two months that traffic signal lamps at several intersections in the city are not bright enough to see in the morning and afternoon. Crews began replacing incandescent lamps in the city's 261 traffic signals seven to eight years ago with light-emitting-diodes (LEDs) in an effort to improve visibility and decrease utility costs. It was among hundreds of cities across the nation to make the switch. Studies have shown LEDs are brighter than incandescent bulbs and use less energy. They also have longer lives, lasting up to 10 years, and manufacturers guarantee them for five years.