Illumination of auditorium

(i) Provision shall be made for adequate illumination of the auditorium and the exits therefrom to the outside of the building including passages, corridors landings and stairways, the notices indicating the position of exits, and all parts of the building to which the public are admitted. (ii) During the whole time the public are present in the building the lighting for purposes other than the illumination of the auditorium shall be in operation sufficiently to enable the public to see clearly the way out.