a second lighting device controlling chip having a second trigger terminal, a second output terminal, and {HEAD ~ a second signal}, wherein the second trigger terminal is coupled to the first output terminal and {TAIL ~ the second signal receiving interface} is configured to receive the data packet 
a second lighting device controlling chip having a second trigger terminal , a second output terminal , and { HEAD ~ a second signal } , wherein the second trigger terminal is coupled to the first output terminal and { TAIL ~ the second signal receiving interface } is configured to receive the data packet
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH