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HID lamps are used in high-performance bicycle headlamps, as well as flashlights and other portable lights, because they produce a great amount of light per unit of power. As the HID lights use less than half the power of an equivalent tungsten-halogen light, a significantly smaller and lighter-weight power supply can be used. HID lamps have ...
Chicago Breakwater and Pierhead light. In 2005, the light was declared excess by the Coast Guard. It was offered at no cost to eligible entities, including federal, state, and local agencies, non-profit corporations, and educational organizations under the provisions of the National Historic Lighthouse Preservation Act of 2000.
A solar explusion began arriving to the Earth Thursday morning and could bring northern lights across much of the country come nightfall, including the metro-east.
Michigan City Breakwater Light: Michigan City: N/A 1904 Never 1909 (Destroyed) None Unknown Michigan City East Light (East Pierhead Light) Michigan City: 1904 1960 [1] Active 2130C 50 ft (15 m) Michigan City West Pierhead Light: Michigan City: N/A 1875 Never 1906 (Destroyed) None
Americans in at least 17 states will have a chance to see the northern lights Thursday night. The following continental U.S. states fall within aurora’s view line: Washington
The northern lights were visible from more areas of the U.S. than usual this week, forecasts showed. Photos from space captured the beautiful scenes. “Absolutely spectacular aurora today ...
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LPS lamps are similar to fluorescent lamps in that they are a low-intensity light source with a linear lamp shape. They do not exhibit a bright arc as do high-intensity discharge (HID) lamps; they emit a softer luminous glow, resulting in less glare. Unlike HID lamps, during a voltage dip low-pressure sodium lamps return to full brightness rapidly.