Well-designed lighting lets people see at night while reducing negative impacts of artificial light on pollinators and birds.

But the farther back you go, the more the lighting dims, and consequently the whole area feels less inviting than it would if ...

When sodium vapor street lamps were replaced by LEDs, soft yellow light was replaced by crisp white. But the change to purple was never supposed to happen.

Some streetlights are turning purple or blue due to a manufacturing defect in a batch produced in 2018, The Charlotte Observer previously reported. Over time, a flaw in the white coating on the bulbs ...

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