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 ...

Think back to mixing primary-color paint in grade school. Remember how mixing in yellow changes white, blue and red? Lighting is no exception. A problem too often overlooked is how the yellow-tinted ...

All 165,000 of Houston's streetlights will be converted to more efficient LEDs over the next five years, halving electricity use and cutting air pollution in what Mayor Annise Parker said will be one ...