Tubular light emitting diode lighting device having selectable light output
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United States of America Patent
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May 17, 2016
Issued Date -
N/A
app pub date -
Dec 15, 2014
filing date -
Dec 15, 2014
priority date (Note) -
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Abstract
A tubular LED bulb includes a circuit board include an AC to DC conversion circuit that provides an output DC current at one of several selectable levels when provided with an AC power source. The DC current is routed through a plurality of LEDs at the selected DC current level. The AC to DC conversion circuit operates responsive to a selection circuit that allows a user to select a level corresponding to a desired light output level. The AC to DC conversion circuit allows the tubular LED bulb to be mounted in a conventional fluorescent light fixture, including a ballast, without regard to polarity. In some embodiments the circuit board can include jumper blocks to allow multiple circuit boards to be connected in tandem.
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