The Theben LUNA 110 plus EL digital, DIN rail, time and light control twilight switch or light controller. It comes with an external light sensor with adjustable on and off switching delay. It also has a display of channel and switching status with DuoFix load line connections. Zero cross-switching to avoid wear and tear to relay contact and lamp for prolonged service life
A permanent ON and a permanent OFF function can be set on the potentiometer
It has a freely adjustable switching brightness