Cary installing nearly 8,000 LED street lights

The town is replacing nearly 8,000 street lights with LEDs, a move that is expected to save Cary more than $200,000 a year. Like many towns, most of Cary’s street fixtures power high-pressure sodium lights. LED, which stands for light-emitting diode, lights are typically brighter, last about four times longer, use less energy and turn on instantly. Perhaps their biggest draw is that they’re cheaper to run.