S.L. 10.17 · Cinema And Stage Regulations (S.L. 10.17)
S.L. 10.17 Art. 23Control of general lighting of auditorium.
(1) There shall be separate and independent means of control of the general lighting of the auditorium, exits, and enclosures, from a convenient place at or near the main entrance of the building.
(2) There shall also be a sufficient number of red or semi-obscured lights in the auditorium during the exhibitions. Candle lanterns shall be kept ready for immediate use in the auditorium in the event of failure of the electric light.