Manufacturers originally designed double-ended high-pressure sodium light bulbs so they would be compatible with double-ended metal halide fixtures. Traditional single-ended high-pressure sodium bulbs ...

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 white ...

Traffic Technician for the Traffic Control and Engineering department for the City of Allentown, Brian Sigoda of Allentown changes the high pressure sodium light bulb in a lamppost on 6th Street in ...

And it will have taken about eight years in all to swap out all of those old-style streetlights across Mankato with high-efficiency LED lights. It was the summer of 2017 when a private electrician ...

The City is in the process of changing out the city-owned street lights downtown from high pressure sodium bulbs to LED bulbs. We are taking advantage of a rebate offer from AEP that will cover a ...

CULPEPER, Va. (WUSA9) -- Things may look a little brighter the next time you go to downtown Culpeper. Town officials tell us that crews have started replacing high-pressure sodium bulbs with more ...