{HEAD ~ a first lighting device controlling chip} having {TAIL ~ a first trigger terminal} for receiving the first setting voltage, a first output terminal for outputting a second setting voltage, and a first signal receiving interface for receiving the data packet; and 
having
{ HEAD ~ a first lighting device controlling chip } having { TAIL ~ a first trigger terminal } for receiving the first setting voltage , a first output terminal for outputting a second setting voltage , and a first signal receiving interface for receiving the data packet ; and
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