I detest sodium-vapor streetlights, whose yellowish glow now colors the night and stains metropolitan horizons everywhere. When I was growing up in suburban California in the 1960s and ’70s, the world ...

To understand why, it's helpful to go back to the mid-2000s, when LED street lighting began to replace the sodium-vapor lamps that had been previously used. (LED stands for light-emitting diode.) LEDs ...

Indiana Michigan Power recently swapped out the sodium vapor streetlights in my neighborhood with LEDs. The power company had first installed sodium lamps in the mid-1970s as a cost-effective ...

CHICAGO (CBS)-- The city is saving $10 million in electricity costs every year with LED streetlights. A total of 200,000 LED streetlights have been installed across the city – replacing many of the ...

Mar. 10—Super bright, energy-efficient LED street lights are beginning to replace Brownsville's old high-pressure sodium-vapor lights, which have been in widespread use for about 50 years. It's easy ...

I’ve noticed when the city repairs broken streetlights that sometimes they install a new LED light and sometimes they do not. I would think they want to convert all the streetlights to LED lights when ...

Arlington County’s streetlights are still cooler than the newly approved statewide levels, but they could be warming up. The Kelvin color scale measures the appearance of light from 1,000 to 10,000 ...