I just bought some Viessmann semaphores in my recent trip to Germany. 4 main signals (single arm), 1 double arm main signal (synchronized movement of arms) and one 'advice' signal (i.e. the one with moving yellow disk). I judged them really excellent and worth the money (namely if compared with Italian light signals and their prices!): they are also easy to install and to connect. Only one drawback: instructions are in German but I now manged some words of it and the wiring scheme is clear enough to be understandable also withou knowing German. Anyway something in English (it's utopy to have it in Italian!) would be welcome...

Andrea