When the light string is powered on, {HEAD ~ the capacitor} is charged and absorbs {TAIL ~ the surge current} which may occur 
absorbs
When the light string is powered on , { HEAD ~ the capacitor } is charged and absorbs { TAIL ~ the surge current } which may occur
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH