A blackout is the only cue that has to be exact. Everything else has tolerance; this one does not, because the audience can tell instantly whether the room…
Two lighting states, and the move between them. That move is the only thing the audience actually experiences — the states themselves are just the endpoints. Take the…
That is genuinely enough to start a conversation. Dates and budget help, but they are not the first question — the first question is what the room is being asked to do.