Systems, devices and methods for lighting
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United States of America Patent
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Aug 16, 2005
Grant Date -
May 27, 2004
app pub date -
Nov 26, 2002
filing date -
Nov 26, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Systems, devices and methods for lighting include a lighting fixture having a first electrical system including a first set of electrical components operable by a first power source located remotely from the lighting fixture. A first light-emitting device is mountable to the housing and energizable through the first electrical system during periods of predetermined levels of light. A second electrical system including a second set of electrical components is operable by a second power source located locally with respect to the lighting fixture. A second light-emitting device is mountable to the housing and automatically energized through the second electrical system during predetermined levels of power from the alternating current power source. And, the first set of electrical components are distinct from and independent of the second set of electrical components. Methods of lighting and reducing energy costs through incorporating the lighting device are also disclosed.
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