Lokacin da aka haɗa da'irar wutar lantarki ta waje, fitarwar taransfoma yana haifar da babban ƙarfin lantarki na dubu da yawa ko ma dubun dubatar volts. Lokacin da aka yi amfani da wannan babban ƙarfin lantarki a kan wayoyin da ke ƙarshen bututun neon, abubuwan da aka caje a cikin bututun suna ƙara haɓakawa a cikin babban filin lantarki da kuma tashi zuwa ga electrodes, suna samar da adadi mai yawa na electrons. Waɗannan na'urorin lantarki masu farin ciki ana haɓaka su a cikin babban filin lantarki{3} kuma suna yin karo da atom ɗin gas a cikin bututu.
Lokacin da makamashin waɗannan electrons da ke yin karo da atom ɗin gas ɗin kyauta ya yi girma sosai, za a sanya atom ɗin gas ɗin zuwa ions masu kyau da kuma electrons; wannan shi ne sabon abu na iskar gas. Ƙarfin kuzarin da ya wuce haddi tsakanin ɓangarorin da aka caje da atom ɗin gas yana fitowa ne ta hanyar photons, don haka yana kammala dukkan aikin hasken neon da ke haskaka bututu.
