The Theben LUNA 111 top3 is a single channel and single input digital, DIN rail, time and light control twilight switch or light controller. The external light sensor included in the scope of supply. The input is external and the light can be programmed by application. The switching brightness is digitally adjustable. Zero cross-switching for relay-saving switching and high lamp loads
Up to 4 number of sensors can be attached
Up to 10 number of devices can be connected to a digital sensor