Gabaɗaya magana, tushen hasken LED za a iya raba shi zuwa kashi biyu: mutum ɗayaLED diode haskekafofin ko LED diode hasken wuta da resistors.A cikin aikace-aikace, wani lokacin ana tsara hanyoyin hasken LED azaman ƙirar mai ɗauke da mai canza DC-DC, kuma irin waɗannan rikitattun kayayyaki ba su cikin iyakar tattaunawar wannan labarin.Idan tushen hasken LED ko module ɗin diode daban ne na LED da kansa, hanyar dimming gama gari shine daidaita girman girmanLED shigar halin yanzu.Don haka, zaɓin ikon direban LED yakamata ya koma ga wannan sifa.Ana amfani da fitilun haske na LED azaman masu tsayayya tare da diodes na LED da aka haɗa a cikin jerin, don haka ƙarfin lantarki yana da inganci.Don haka, masu amfani za su iya amfani da kowane nau'in wutar lantarki na yau da kullun na kasuwanci don tuƙiLED fitilu.

Mafi kyawun mafita dimming LED tsiri shine amfani da fitarwa bugun jini nisa daidaitawa PWM dimming aikin don magance matsalolin dimming na gama gari.Hasken fitarwa ya dogara da zagayowar lodi na siginar dimming don samun sauye-sauyen dimming wanda ke rage haske.Mahimman sigogi don zaɓar samar da wutar lantarki shine nazarin dimming da mitar fitarwa mai faɗin faɗin PWM.Matsakaicin ikon dimming yakamata ya zama ƙasa da 0.1% don cimma ƙudurin dimming 8-bit don saduwa da duk aikace-aikacen dimming fitilu LED.Matsakaicin saurin bugun bugun bugun jini ya kamata mita PWM ya kasance mai girma kamar yadda zai yiwu don hana matsalolin flicker haske, Dangane da wallafe-wallafen bincike na fasaha masu dacewa, ana ba da shawarar samun mitar aƙalla sama da 1.25kHz don rage flicker ganuwa ga idon ɗan adam.