Ƙofar wutar lantarki da kanta tana da juriya na wuta, a farkon matakin wuta na iya kiyaye hatimi da mutunci, zai iya hana yaduwar wutar, don wadanda abin ya shafa su tsere daga lokaci. Ba sa’a ba ne don zama mafi girma, komai ya fito ne daga fasaha mai mahimmanci da ƙarfi mai ƙarfi.

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Ƙofar ƙofar katako mai hana wuta,m karfen ginin bakin kofa,Amfani da kofar fita na gaggawa, Wuta rated kofa ul, Wuta rated kofa mazaunin