a second lighting device controlling chip having a second trigger terminal, a second output terminal, and a second signal, wherein {HEAD ~ the second trigger terminal} is coupled to {TAIL ~ the first output terminal} and 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 a second signal , wherein { HEAD ~ the second trigger terminal } is coupled to { TAIL ~ the first output terminal } and 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 OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH