Na ojiji ọkụ eletrik, ihe ize ndụ nke ọkụ eletrik dị elu na-agụnye ịka nká nke mkpuchi eletrik na ebelata. Ọ bụrụ na voltaji gafere ogo cer, ọ nwere ike ịpụ ngwa ngwa eletriki dịka TVs, DVD, na ndị ọzọ, na-enwekarị nsogbu akụrụngwa ma ọ bụ ihe ọghọm ọkụ. N'aka nke ọzọ, voltaji dị ala nwere ike ibute elu dị ugbu a n'ihi ike dị elu nke ibu ahụ, nke nwere ike ibute nnukwu mmebi morrs na ikuku na-eme mkpọtụ.
Ihe atụ nke ngwa ala nwere obere ihe na-emetụta friji, friza, nmps mmiri, ebe ịsa mmiri, na-adọ mmiri, na igwe mkpuchi.
Ngwa ngwa ngwa ngwa ọrụ anyị na-enye anyị ihe ngwọta akụ na ụba na nke bara uru iji lebara okwu a anya. Iwe ihe mkpuchi 220V dị ka ihe atụ, anyị nwere preset bara uru, ka anyị kwuo nrụpụta ụlọ ọrụ nrụpụta bụ 165-250V. Mgbe voltaji dara n'okpuru 165v ma ọ bụ gafere 250V, ngwaahịa anyị ga-ebipụ ike ọkọnọ iji kpuchido igwe eletriki. Ozugbo ihe ọkụkụ na-alaghachi na mpaghara ahụ, ọkọnọ ọkọlọtọ ga-eweghachi.