Thus, {TAIL ~ the voltage} dropped on {HEAD ~ each light} rises slowly and the lights are safe 
Thus , { TAIL ~ the voltage } dropped on { HEAD ~ each light } rises slowly and the lights are safe
OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH