As many commercial operators and homeowners are shifting to LEDs, which tend to fall somewhere in the blue-white spectrum, the new results may have important implications beyond tropical rainforests.

Thousand Hills State Park superintendent Ryan Persinger poses next to one of the park’s cabins. The flat, square light built into the cabin’s awning behind him produces less light pollution than the ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Thom Dunn Thom Dunn is a writer focusing on home heating and cooling. He once ...

Once upon a time, buying a lightbulb meant choosing an incandescent one of between 25 and 100 watts, depending on how bright you wanted the light to be and the fixture you were putting it in. You ...