Such lights in various parts of a theatre[...]

Wilfred Granville

01/01/1912

Eng

Such lights in various parts of a theatre as, by the law of the land, must be kept alight during the performance; e.g. exit lights, which are known in the theatre as 'panic lights' because the prevent panic in the case of electric light failure.

Wilfred Granville, A dictionary of theatrical terms, Andre Deutsch, 01/01/1912, London
tipologia
ambito

p. 139

Police lights (Eng)

exit lights, panic lights, electric light, failure