Finder Twilight switch output unit 1 pc(s) 19.91.9.012.4000 Operating voltage:12 V DC 1 change-over

Control via the semi-conductor output (Y1-Y2) of the twilight switch 11.91. This output is controlled only by brightness and not by timer clock. With the twilight switch 11.91 and the power module 19.91 it is possible to switch off some of the lamps during the night hours for saving power with 11.91 depending upon time and to maintain a reduced illumination throughout the night with the 19.91.

Price: £ 27.99 from Conrad Electronic