Circuit use during switch-off of automatic illumination installation, using indication and/or display as warning of following switch-off, including certain blink phase of illumination as warning of imminent short switch-off

摘要

Circuit for preventing automatic switch-off of illumination installation act prior to automatic switch-off by providing indication and/or display, i.e. certain blink phase of illumination, indicating imminent, short-period switch-off. Thus it provides facility for repeated actuation of illumination and for preventing automatic switch-off. Adjustment can be carried out individually as locally required.