Color temperature control
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United States of America Patent
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Feb 20, 2018
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N/A
app pub date -
May 1, 2015
filing date -
May 1, 2015
priority date (Note) -
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Abstract
A lighting device includes a first group of light emitting diodes (LEDs) that are in series with each other and that emit a first light having a first correlated color temperature (CCT). The lighting device further includes a second group of LEDs that are in series with each other and that emit a second light having a second CCT. The lighting device also includes an active electrical component in series with the second group of LEDs. The lighting device further includes a switch coupled in series with the second group of LEDs and the electrical component. The first group of LEDs is in a parallel configuration with the switch, the second group of LEDs, and the electrical component.
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