Alliant Energy had been studying replacing the high-pressure sodium light bulb casting a yellowish-orange glow on downtowns and residential streets around Iowa with a more efficient, brighter ...

Wheeling City Council has decided to replace high-pressure sodium bulbs with LEDs on Wheeling Island, as AEP is struggling to ...

OPPD representatives say the plan is to start phasing in the LEDs early next year as the sodium bulbs burn out- something OPPD won't have to worry about with the new models.

Spokesman Justin Foss said the utility plans to replace about 2,000 lights a year as the sodium bulbs burn out or stop working. The light-emitting diode models, he said, require less maintenance ...

New York is changing its color. For decades, the city relied on high-pressure sodium lamps to light its streets, parks and highways. The bulbs were a cheaper, more efficient alternative to the ...

Wickliffe is embarking on an ambitious city-wide project which will see all of the city’s streetlights replaced with more energy-efficient LED lighting. The nearly 1,600 streetlights within t… ...

LED bulbs burn less electricity, and last about 10 times longer than the sodium lights, according to Florida Power and Light, which has the county contract to install the new lights.

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 ...

The Municipal Corporation of Dehradun MCD) is to replace all the sodium bulbs with LED in all the 100 wards under its purview. The work of replacing sodium lights in the 60 older wards is an ...