A light string, comprising a plurality of incandescent filament lamps, {HEAD ~ the incandescent filament lamps} being electrically connected in series and powered by {TAIL ~ an AC power supply} 
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A light string , comprising a plurality of incandescent filament lamps , { HEAD ~ the incandescent filament lamps } being electrically connected in series and powered by { TAIL ~ an AC power supply }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL