LIGHTING DEVICE
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United States of America Patent
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Jul 9, 2015
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Sep 26, 2014
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Abstract
A lighting device having: a first light source including at least one first light-emitting unit having a first light emission color; a second light source including at least one second light-emitting unit having a second light emission color; a resistor connected in series to the first light source; and a switching element connected in series to the second light source, current flowing to the first light source being converted into a control voltage by the resistor, and current flowing to the switching element being controlled by the control voltage.
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