Itara ryiyongera ni ubwoko bwumuriro wamashanyarazi utuma kiyobora ishyuha kandi ikamurika nyuma yumuyaga unyuramo. Itara ryiyongera ni isoko yumucyo wamashanyarazi wakozwe ukurikije ihame ryimirasire yumuriro. Ubwoko bworoshye bwamatara yaka ni ukunyura umuyaga uhagije unyuze muri filament kugirango ube mwinshi, ariko itara ryaka rizagira ubuzima buke.
Itandukaniro rinini hagati yamatara ya halogene nigitereko cyaka cyane nuko igikonoshwa cyikirahure cyamatara ya halogene cyuzuyemo gaze yibanze ya halogene (ubusanzwe iyode cyangwa bromine), ikora kuburyo bukurikira: Mugihe filament ishyushye, atome ya tungsten ihumeka kandi ikagenda werekeza ku rukuta rw'ikirahuri. Iyo begereye urukuta rw'ikirahuri, imyuka ya tungsten ikonjeshwa igera kuri 800 ℃ igahuza na atome ya halogene ikora tungsten halide (tungsten iyode cyangwa tromsten bromide). Tungsten halide ikomeje kugenda yerekeza hagati yikirahure cyikirahure, isubira muri firimu ya okiside. Kubera ko tungsten halide ari uruganda rudahungabana cyane, irashyuha ikongera igahinduka imyuka ya halogene na tungsten, hanyuma igashyirwa kuri filament kugirango ishobore guhinduka. Binyuze muri ubu buryo bwo gutunganya ibintu, ubuzima bwa serivisi ya filament ntabwo bwongerewe cyane (hafi inshuro 4 z’itara ryaka), ariko kandi kubera ko iyo filime ishobora gukora ku bushyuhe bwo hejuru, bityo ikabona umucyo mwinshi, ubushyuhe bwamabara menshi hamwe n’umucyo mwinshi gukora neza.
Ubwiza n’imikorere yamatara yimodoka n'amatara bifite akamaro kanini mumutekano wibinyabiziga bifite moteri, igihugu cyacu cyashyizeho ibipimo byigihugu ukurikije ibipimo by’uburayi ECE mu 1984, kandi kumenya imikorere yo gukwirakwiza amatara ni kimwe mubyingenzi muri byo
