Last week, we took a look at fluorescent lighting, which is dramatically reducing our energy use for illuminating indoor spaces. This week, we'll cover mercury vapor lighting, which is the most common ...

FLAGSTAFF - Flagstaff has begun cracking down on mercury vapor lights, 10 years after the city council first banned the aging lighting systems because they made it hard for local astronomers to ...

What's better for exterior security lighting, mercury-vapor lights or motion-activated lamps? --John Donahue, Richville, Minn. The blue-white mercury-vapor lights are brighter and more ...

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