ɐnˈʌðɚ ɹᵻkwˈaɪɚmənt ɪz tə pɹəvˈaɪd lˈoʊvˈoʊltɪdʒ ᵻlɛktɹˈɪsᵻɾi tʊ ɐ dɪvˈaɪs fɹʌm mˈeɪnz ᵻlɛktɹˈɪsᵻɾi; ðɪs wʊd biː dˈʌn baɪ wʌt ɪz jˈuːʒuːəli kˈɔːld ɐ pˈaʊɚ səplˈaɪ.
Another requirement is to provide low-voltage electricity to a device from mains electricity; this would be done by what is usually called a power supply.