Clarify Some Issues With Led Public Lighting

Myth: Communities are better off with conventional street lighting.

For the last several decades, most street lighting in the United States has used high-pressure sodium (HPS) technology, which emits orange-yellowish light. HPS street lighting is being replaced by street lighting technologies that emit “white” light – primarily LED, due to its higher efficiency and longer life. All white-light technologies – including LED – emit more short-wavelength light than HPS. In addition to lasting longer and being more efficient – which by the way provide substantial energy and cost savings – Led Public lighting(classicledlight) also offers other potential benefits. For example, unlike other types of street lighting, LED systems can be adjusted to provide only the level of illumination needed at any given time, and can also offer a high degree of control over the direction in which light is emitted. This makes it much easier to reduce glare, light trespass (the spillover of light into areas where it’s not wanted), and uplight (which contributes to the phenomenon of “sky glow” that reduces the visibility of stars in the night sky).

Led public lighting can play a critical role in avoiding unintended consequences to humans and wildlife – as long as care is taken to make sure the light is directed only where it is needed, with minimal glare, and that it emits a spectrum that supports visibility, safety, and health.

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