natural light may be supplemented by artificial means to provide a maximum of 16 hours light per day, with a continuous nocturnal rest period without artificial light of at least eight hours;
féadfar an méid solais nádúrtha a mhéadú le modhanna saorga chun uasmhéid 16 uaire solais a chur ar fáil in aghaidh an lae agus beidh tréimhse scíthe san oíche gan aon solas saorga ar feadh 8 n-uaire leanúnacha ar a laghad;