A waveform management method for ballasts for {TAIL ~ use} in {HEAD ~ an electronic device}, comprising: 
A waveform management method for ballasts for { TAIL ~ use } in { HEAD ~ an electronic device } , comprising :
OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH