Multi-tubular LED light bulb
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United States of America Patent
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Oct 14, 2014
Grant Date -
Aug 2, 2012
app pub date -
Jun 30, 2011
filing date -
Jan 31, 2011
priority date (Note) -
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Abstract
The multi-tubular LED light bulb has a seat having a power plug, multiple glass tubes mounted on the seat, multiple multi-directional lighting LED strips respectively mounted inside the glass tubes and an AC to DC converting circuit board mounted inside the seat and connected to the power plug to obtain AC power and converting the AC power to DC power. The multi-directional lighting LED strips are electronically connected to the DC power source from the AC to DC converting circuit in parallel. Since the LED light bulb has multiple multi-directional lighting LED strips, different directional sightings and even brightness are provided. Further, heat from the LED strip is easily and quickly transmitted to the sidewall of the glass tube to extend the lifetime of the LED light bulb, since the multi-directional lighting LED strips are close to a sidewall of the corresponding glass tube.
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