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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 ...
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
Like all HID lamps, HQI lamps operate under high pressure and temperature, and require special light fixtures for safe use. HQI lamps can produce different color temperatures when manufactured with different metal halides. They are relatively efficient light sources producing a high lumen per watt ratio (approximately 6x that of incandescent ...
New York, Oregon, Wyoming, Nebraska, Iowa, Illinois, Vermont, New Hampshire and Maine are along the aurora’s projected view line as of Monday. The best way to view the lights
What were those lights racing across the sky over Dallas-Fort Worth on Thursday around 9:45 p.m.? ... The lights were probably SpaceX Skylink satellites, which were reflecting the sun that had ...
A flicker light bulb, flicker flame light bulb or flicker glow lamp is a gas-discharge lamp which produces light by ionizing a gas, usually neon mixed with helium and a small amount of nitrogen gas, by an electric current passing through two flame shaped electrode screens coated with partially decomposed barium azide. The ionized gas moves ...
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This is a list of the brightest natural objects in the sky. This list orders objects by apparent magnitude from Earth , not anywhere else . This list is with reference to naked eye viewing; all objects are listed by their visual magnitudes, and objects too close together to be distinguished are listed jointly.