Blackout
From English DMXCWiki
A Blackout is an instant switch-off of all light sources, for example at the end of a Scene.
In DMXControl, a "Blackout" button is located in the main window. When this is activated, all Dimmer channels are set to zero level.
Also any new brightness levels are not effective until the blackout is deactivated. When the blackout is deactivated, then the levels are restored, with any changes included.
