Invention Grant
- Patent Title: Low cost LED light string for pre-lit christmas trees
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Application No.: US15478928Application Date: 2017-04-04
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Publication No.: US09781792B1Publication Date: 2017-10-03
- Inventor: John L. Janning
- Applicant: JLJ, Inc.
- Applicant Address: US OH Bellbrook
- Assignee: JLJ, Inc.
- Current Assignee: JLJ, Inc.
- Current Assignee Address: US OH Bellbrook
- Agency: Blank Rome LLP
- Main IPC: H05B33/08
- IPC: H05B33/08 ; A47G33/08 ; A47G33/06

Abstract:
A series-wired LED light string formed of a plurality of LEDs connected in series with a current limiting resistor. A resistive component is electrically connected across each LED and serves as a shunt to electrically bypass a failed LED to keep the remaining LEDs in the light string fully illuminated. The LED light string has only two wires and is powered by a full wave rectified voltage, generated external to the light string.
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