LED city street lights: A glowing danger скачать в хорошем качестве

LED city street lights: A glowing danger

BRIGHTER, WHITER LIGHTS As night falls on the tristate, a new, brighter and whiter light is beginning to shine. Light Emitting Diodes, or L.E.D.’s, are at the center of these new street lights. They produce more light at approximately half the cost of those old, familiar high-pressure sodium lights, which produce an amber to yellow hued light. The lower-cost, bright-light combination is why L.E.D.’s are now popping up on our roads and streets, highways and byways, even in a tunnel many of us drive through. According to the Ohio Department of Transportation (ODOT), approximately 1,100 L.E.D.’s are included in the 46 thousand streetlights on Ohio’s roads and highways.