For almost two generations of Chicagoans, orange has been the color of night. High pressure sodium vapor lights, which create a glow reminiscent of a tire fire, have lit Chicago since the 1970s. Th… ...

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 ...

The new streetlights are now the city’s standard light, replacing sodium vapor lamps that Mayor Richard J. Daley first had installed in the mid-1970s to increase the level of street lighting and ...

Blake is leading a push that has temporarily halted Miami-Dade’s replacement of thousands of suburban streetlights powered by traditional sodium-vapor bulbs with the more energy efficient LED bulbs.

Dec. 6—After switching out about 1,100 of its more than 2,000 streetlight fixtures in Santa Fe this year from sodium vapor to LEDs, Public Service Company of New Mexico will switch out its ...

Some Mesa neighborhoods may one day get a better view of the stars as the city converts some 34,000 sodium vapor street lights to more advanced LED lights.

A contractor for Duke Energy Progress replaced an old sodium vapor streetlight fixture on Beryl Road near the State Fairgrounds on Tuesday with a new LED, the first in an effort to overhaul the ...